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Use a calculator to find the cross products. Compare the cross products and determine if the ratios form a proportion. Write “Y” if the ratios do form a proportion, and write “N” if the ratios do not form a proportion.

1. 3/12 and 10/30

2. 7/16 and 42/66

3. 13/70 and 39/200

4. 16/34 and 80/170

5. 11/12 and 66/72

6. 14/17 and 112/134

7. 2/3 and 120/190

8. 23/99 and 115/495

User Palm Snow
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I think that it’s 13/70 and 39/200
User Skodsgn
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