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Finding the Third Proportional to 87,930 and 193,782

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Solution

The third proportional to 87,930 and 193,782 is: 427,060.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,930 : 193,782 = 193,782 : x
  2. Step 2: Convert to fraction form
    87,930/193,782 = 193,782/x
  3. Step 3: Cross multiply
    87,930x = 193,782 × 193,782
  4. Step 4: Simplify right side
    87,930x = 37,551,463,524
  5. Step 5: Solve for x
    x = 37,551,463,524/87,930
  6. Step 6: Final answer
    x = 427,060.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.