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Finding the Fourth Proportional to 57,501.88, 86,252.10 and 20,061.88

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Solution

The fourth proportional to 57,501.88, 86,252.10 and 20,061.88 is: 30,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,501.88 : 86,252.10 = 20,061.88 : x
  2. Step 2: Convert to fraction form
    57,501.88/86,252.10 = 20,061.88/x
  3. Step 3: Cross multiply
    57,501.88x = 86,252.10 × 20,061.88
  4. Step 4: Simplify right side
    57,501.88x = 1,730,379,279.95
  5. Step 5: Solve for x
    x = 1,730,379,279.95/57,501.88
  6. Step 6: Final answer
    x = 30,092.57

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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.