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Finding the Third Proportional to 58,272 and 87,900

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Solution

The third proportional to 58,272 and 87,900 is: 132,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,272 : 87,900 = 87,900 : x
  2. Step 2: Convert to fraction form
    58,272/87,900 = 87,900/x
  3. Step 3: Cross multiply
    58,272x = 87,900 × 87,900
  4. Step 4: Simplify right side
    58,272x = 7,726,410,000
  5. Step 5: Solve for x
    x = 7,726,410,000/58,272
  6. Step 6: Final answer
    x = 132,592.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.