Complete a proportional table

Use a complete pair to find the constant of proportionality, then use it for the missing value.

1. This table is proportional: x = 9, 12, 18 and y = 33, ?, 66. What is the missing y?
2. This table is proportional: x = 2, 3, 6 and y = 8, ?, 24. What is the missing y?
3. This table is proportional: x = 8, 16, 20 and y = 20, 40, ?. What is the missing y?
4. This table is proportional: x = 3, 4, 6 and y = 6, ?, 12. What is the missing y?
5. This table is proportional: x = 3, 5, 7 and y = 27, ?, 63. What is the missing y?
6. This table is proportional: x = 4, 6, 9 and y = ?, 54, 81. What is the missing y?
7. This table is proportional: x = 1, 5, 6 and y = 15, ?, 90. What is the missing y?
8. This table is proportional: x = 3, 5, 7 and y = 45, 75, ?. What is the missing y?
9. This table is proportional: x = 1, 2, 6, 7 and y = 8, 16, 48, ?. What is the missing y?
10. This table is proportional: x = 9, 15, 21, 24 and y = 12, ?, 28, 32. What is the missing y?
11. This table is proportional: x = 4, 7, 10, 12 and y = 12, ?, 30, 36. What is the missing y?
12. This table is proportional: x = 12, 15, 24, 27 and y = 20, ?, 40, 45. What is the missing y?
13. This table is proportional: x = 1, 4, 6, 7 and y = 8, ?, 48, 56. What is the missing y?
14. This table is proportional: x = 8, 12, 16, 24 and y = 20, 30, ?, 60. What is the missing y?
15. This table is proportional: x = 2, 8, 10, 18 and y = 15, ?, 75, 135. What is the missing y?
16. This table is proportional: x = 12, 15, 24, 33 and y = 20, ?, 40, 55. What is the missing y?
17. This table is proportional: x = 2, 4, 7, 8, 9 and y = 14, ?, 49, 56, 63. What is the missing y?
18. This table is proportional: x = 2, 3, 4, 7, 11 and y = 12, 18, ?, 42, 66. What is the missing y?
19. This table is proportional: x = 3, 12, 18, 27, 33 and y = 16, 64, 96, ?, 176. What is the missing y?
20. This table is proportional: x = 6, 15, 21, 24, 27 and y = 34, 85, 119, ?, 153. What is the missing y?