Hello,
4 is to 78 as x is to 100, we write it as a ratio:
78 4 = 100 x x = 78 100 ∗ 4 x = 39 200 = 5.13
The number that is to 100 as 4 is to 78 is approximately 5.13. We set up a proportion and solved for the unknown value using cross-multiplication. This method confirmed that both ratios are equivalent.
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