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Finding the Fourth Proportional to 87,239.80, 130,859.70 and 24,902.20

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Solution

The fourth proportional to 87,239.80, 130,859.70 and 24,902.20 is: 37,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239.80 : 130,859.70 = 24,902.20 : x
  2. Step 2: Convert to fraction form
    87,239.80/130,859.70 = 24,902.20/x
  3. Step 3: Cross multiply
    87,239.80x = 130,859.70 × 24,902.20
  4. Step 4: Simplify right side
    87,239.80x = 3,258,694,421.34
  5. Step 5: Solve for x
    x = 3,258,694,421.34/87,239.80
  6. Step 6: Final answer
    x = 37,353.30

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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.