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Finding the Third Proportional to 24,387 and 53,139

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Solution

The third proportional to 24,387 and 53,139 is: 115,789.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,387 : 53,139 = 53,139 : x
  2. Step 2: Convert to fraction form
    24,387/53,139 = 53,139/x
  3. Step 3: Cross multiply
    24,387x = 53,139 × 53,139
  4. Step 4: Simplify right side
    24,387x = 2,823,753,321
  5. Step 5: Solve for x
    x = 2,823,753,321/24,387
  6. Step 6: Final answer
    x = 115,789.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.