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Finding the Fourth Proportional to 62,871.65, 94,319.11 and 20,754.66

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Solution

The fourth proportional to 62,871.65, 94,319.11 and 20,754.66 is: 31,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.65 : 94,319.11 = 20,754.66 : x
  2. Step 2: Convert to fraction form
    62,871.65/94,319.11 = 20,754.66/x
  3. Step 3: Cross multiply
    62,871.65x = 94,319.11 × 20,754.66
  4. Step 4: Simplify right side
    62,871.65x = 1,957,561,059.55
  5. Step 5: Solve for x
    x = 1,957,561,059.55/62,871.65
  6. Step 6: Final answer
    x = 31,135.83

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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.