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Finding the Third Proportional to 9,478 and 12,534

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Solution

The third proportional to 9,478 and 12,534 is: 16,575.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478 : 12,534 = 12,534 : x
  2. Step 2: Convert to fraction form
    9,478/12,534 = 12,534/x
  3. Step 3: Cross multiply
    9,478x = 12,534 × 12,534
  4. Step 4: Simplify right side
    9,478x = 157,101,156
  5. Step 5: Solve for x
    x = 157,101,156/9,478
  6. Step 6: Final answer
    x = 16,575.35

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.