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Finding the Fourth Proportional to 57,855.71, 86,832.87 and 22,819.97

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Solution

The fourth proportional to 57,855.71, 86,832.87 and 22,819.97 is: 34,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,855.71 : 86,832.87 = 22,819.97 : x
  2. Step 2: Convert to fraction form
    57,855.71/86,832.87 = 22,819.97/x
  3. Step 3: Cross multiply
    57,855.71x = 86,832.87 × 22,819.97
  4. Step 4: Simplify right side
    57,855.71x = 1,981,523,054.25
  5. Step 5: Solve for x
    x = 1,981,523,054.25/57,855.71
  6. Step 6: Final answer
    x = 34,249.40

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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.