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Finding the Third Proportional to 20,126 and 27,745

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Solution

The third proportional to 20,126 and 27,745 is: 38,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126 : 27,745 = 27,745 : x
  2. Step 2: Convert to fraction form
    20,126/27,745 = 27,745/x
  3. Step 3: Cross multiply
    20,126x = 27,745 × 27,745
  4. Step 4: Simplify right side
    20,126x = 769,785,025
  5. Step 5: Solve for x
    x = 769,785,025/20,126
  6. Step 6: Final answer
    x = 38,248.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.