Find the missing her in each proportion.

1. 4/10 = 32/n =?

2. 3/n = 9/21 =?

3. 7:3 = n:9 =?

4.6:6 = n:9 =?

5. n/12 = 10/30 =?

6. 10/16 = 15/n =?

7.n/12 = 27/18 =?

8.6:n = 18:12 =?

9. 3:8 = n:48 =?

10.15:n = 5:6 =?

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