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Finding the Fourth Proportional to 57,502.91, 86,227.07 and 20,058.44

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Solution

The fourth proportional to 57,502.91, 86,227.07 and 20,058.44 is: 30,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,502.91 : 86,227.07 = 20,058.44 : x
  2. Step 2: Convert to fraction form
    57,502.91/86,227.07 = 20,058.44/x
  3. Step 3: Cross multiply
    57,502.91x = 86,227.07 × 20,058.44
  4. Step 4: Simplify right side
    57,502.91x = 1,729,580,128.98
  5. Step 5: Solve for x
    x = 1,729,580,128.98/57,502.91
  6. Step 6: Final answer
    x = 30,078.13

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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.