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Finding the Third Proportional to 39,046 and 53,691

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Solution

The third proportional to 39,046 and 53,691 is: 73,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,046 : 53,691 = 53,691 : x
  2. Step 2: Convert to fraction form
    39,046/53,691 = 53,691/x
  3. Step 3: Cross multiply
    39,046x = 53,691 × 53,691
  4. Step 4: Simplify right side
    39,046x = 2,882,723,481
  5. Step 5: Solve for x
    x = 2,882,723,481/39,046
  6. Step 6: Final answer
    x = 73,828.91

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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.