Solve for the missing number: 250 / √(?) = 10. What is the value of ?

Introduction / Context:
A simple radical equation in the denominator. Clear the denominator first, then isolate the square root, square, and solve.

Given Data / Assumptions:
250 / √(?) = 10.

Concept / Approach:
Cross-multiply to get √(?) in terms of known numbers, then square.

Step-by-Step Solution:

Verification / Alternative check:
Check: 250 / √625 = 250 / 25 = 10.

Why Other Options Are Wrong:
25 and 250 are values of √(?) or the original numerator; 2500 over-squares; 100 is unrelated.

Common Pitfalls:
Squaring before isolating the root, leading to algebraic mistakes.

Final Answer:
625