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Finding the Third Proportional to 12,344 and 15,892

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Solution

The third proportional to 12,344 and 15,892 is: 20,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344 : 15,892 = 15,892 : x
  2. Step 2: Convert to fraction form
    12,344/15,892 = 15,892/x
  3. Step 3: Cross multiply
    12,344x = 15,892 × 15,892
  4. Step 4: Simplify right side
    12,344x = 252,555,664
  5. Step 5: Solve for x
    x = 252,555,664/12,344
  6. Step 6: Final answer
    x = 20,459.79

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.