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Finding the Third Proportional to 57,150 and 87,372

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Solution

The third proportional to 57,150 and 87,372 is: 133,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,150 : 87,372 = 87,372 : x
  2. Step 2: Convert to fraction form
    57,150/87,372 = 87,372/x
  3. Step 3: Cross multiply
    57,150x = 87,372 × 87,372
  4. Step 4: Simplify right side
    57,150x = 7,633,866,384
  5. Step 5: Solve for x
    x = 7,633,866,384/57,150
  6. Step 6: Final answer
    x = 133,575.96

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.