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Finding the Fourth Proportional to 87,189.80, 130,785.92 and 24,860.30

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Solution

The fourth proportional to 87,189.80, 130,785.92 and 24,860.30 is: 37,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,189.80 : 130,785.92 = 24,860.30 : x
  2. Step 2: Convert to fraction form
    87,189.80/130,785.92 = 24,860.30/x
  3. Step 3: Cross multiply
    87,189.80x = 130,785.92 × 24,860.30
  4. Step 4: Simplify right side
    87,189.80x = 3,251,376,428.74
  5. Step 5: Solve for x
    x = 3,251,376,428.74/87,189.80
  6. Step 6: Final answer
    x = 37,290.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.