Answer :

To solve the proportion [tex]\( \frac{7}{8} = \frac{x}{48} \)[/tex], we need to find the value of [tex]\( x \)[/tex]. Here's a step-by-step solution:

1. Set Up the Proportion:
We are given [tex]\( \frac{7}{8} = \frac{x}{48} \)[/tex].

2. Cross-Multiply:
To solve for [tex]\( x \)[/tex], we cross-multiply:
[tex]\[ 7 \times 48 = 8 \times x \][/tex]

3. Perform the Multiplication:
Calculate the product on the left-hand side:
[tex]\[ 7 \times 48 = 336 \][/tex]

4. Set Up the Equation:
This gives us:
[tex]\[ 336 = 8 \times x \][/tex]

5. Solve for [tex]\( x \)[/tex]:
Divide both sides of the equation by 8 to isolate [tex]\( x \)[/tex]:
[tex]\[ x = \frac{336}{8} \][/tex]

6. Calculate the Result:
Perform the division:
[tex]\[ x = 42 \][/tex]

Therefore, the best answer to the question [tex]\( \frac{7}{8} = \frac{x}{48} \)[/tex] is:
D. 42