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Finding the Third Proportional to 20,472 and 27,324

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Solution

The third proportional to 20,472 and 27,324 is: 36,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472 : 27,324 = 27,324 : x
  2. Step 2: Convert to fraction form
    20,472/27,324 = 27,324/x
  3. Step 3: Cross multiply
    20,472x = 27,324 × 27,324
  4. Step 4: Simplify right side
    20,472x = 746,600,976
  5. Step 5: Solve for x
    x = 746,600,976/20,472
  6. Step 6: Final answer
    x = 36,469.37

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.