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Finding the Third Proportional to 57,372 and 86,924

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Solution

The third proportional to 57,372 and 86,924 is: 131,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,372 : 86,924 = 86,924 : x
  2. Step 2: Convert to fraction form
    57,372/86,924 = 86,924/x
  3. Step 3: Cross multiply
    57,372x = 86,924 × 86,924
  4. Step 4: Simplify right side
    57,372x = 7,555,781,776
  5. Step 5: Solve for x
    x = 7,555,781,776/57,372
  6. Step 6: Final answer
    x = 131,698.07

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.