Yes, we claim that the two ratios are proportional.
Proportion
Proportion is an equality between two ratios. These ratios are made up of two real integers. In a proportion, when there is an equality, both ratios have to be equivalent to the other. Equivalent ratio is when both division results are equal.
— To find out if the equality between these two given ratios is true, let's just: divide the numerator by the denominator.
3/8 = 3 ÷ 8 = 0,375
24/64 = 24 ÷ 64 = 0,375
Therefore, we see that the results of these ratios are the same. So these two ratios are proportional. 3/8 = 24/64