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Finding the Third Proportional to 87,422.63 and 187,587

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Solution

The third proportional to 87,422.63 and 187,587 is: 402,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.63 : 187,587 = 187,587 : x
  2. Step 2: Convert to fraction form
    87,422.63/187,587 = 187,587/x
  3. Step 3: Cross multiply
    87,422.63x = 187,587 × 187,587
  4. Step 4: Simplify right side
    87,422.63x = 35,188,882,569
  5. Step 5: Solve for x
    x = 35,188,882,569/87,422.63
  6. Step 6: Final answer
    x = 402,514.60

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.