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Finding the Fourth Proportional to 57,908.70, 86,867.10 and 22,843.80

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Solution

The fourth proportional to 57,908.70, 86,867.10 and 22,843.80 is: 34,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,908.70 : 86,867.10 = 22,843.80 : x
  2. Step 2: Convert to fraction form
    57,908.70/86,867.10 = 22,843.80/x
  3. Step 3: Cross multiply
    57,908.70x = 86,867.10 × 22,843.80
  4. Step 4: Simplify right side
    57,908.70x = 1,984,374,658.98
  5. Step 5: Solve for x
    x = 1,984,374,658.98/57,908.70
  6. Step 6: Final answer
    x = 34,267.30

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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.