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Finding the Third Proportional to 10,031 and 15,605

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Solution

The third proportional to 10,031 and 15,605 is: 24,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031 : 15,605 = 15,605 : x
  2. Step 2: Convert to fraction form
    10,031/15,605 = 15,605/x
  3. Step 3: Cross multiply
    10,031x = 15,605 × 15,605
  4. Step 4: Simplify right side
    10,031x = 243,516,025
  5. Step 5: Solve for x
    x = 243,516,025/10,031
  6. Step 6: Final answer
    x = 24,276.35

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.