State of each pair of ratios form a proper proportion
1) 4/2 and 20/6
2) 3/2, and 18/8 .
1) To determine if the pair of ratios form a proper proportion, we need to check if the cross-products are equal.
Cross-products of the first pair:
4 * 6 = 24
2 * 20 = 40
Since the cross-products are not equal (24 ≠ 40), the pair of ratios (4/2 and 20/6) does not form a proper proportion.
2) Cross-products of the second pair:
3 * 8 = 24
2 * 18 = 36
Again, the cross-products are not equal (24 ≠ 36), so the pair of ratios (3/2 and 18/8) does not form a proper proportion either.