Answer :

Final answer:

To solve for X in the given ratio proportion, use cross-multiplication and simplify the equation. The value of X is 24.

Explanation:

First, let's analyze the relationship between the numbers 7, 42, 4, and X. The symbol '::' indicates a ratio or proportion. In this case, 7 is to 42 as 4 is to X. To find X, we can use cross-multiplication.

7 * X = 4 * 42

X = (4 * 42) / 7

Simplifying the equation:

X = 24

Therefore, the value of X is 24. So, the correct answer is C. 24.

Learn more about Solving ratio proportion problems here:

https://brainly.com/question/33835206

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