Find the missing number: 3 : 8 = 15 : ___
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Worked Solution
Step 1: Find the scale factor.\n 15 ÷ 3 = 5\n (The first term was multiplied by 5.)\n\n
Step 2: Apply the same scale factor to the second term.\n 8 × 5 = 40\n\n
Step 3: Answer: 3 : 8 = 15 : 40\n\nVerification: Simplify 15 : 40 → GCD = 5 → 3 : 8 ✓
Answer: 40
Correct answer: 40
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