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Finding the Third Proportional to 57,589 and 87,189

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Solution

The third proportional to 57,589 and 87,189 is: 132,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,589 : 87,189 = 87,189 : x
  2. Step 2: Convert to fraction form
    57,589/87,189 = 87,189/x
  3. Step 3: Cross multiply
    57,589x = 87,189 × 87,189
  4. Step 4: Simplify right side
    57,589x = 7,601,921,721
  5. Step 5: Solve for x
    x = 7,601,921,721/57,589
  6. Step 6: Final answer
    x = 132,003.02

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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.