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Finding the Fourth Proportional to 61,687.46, 92,517.35 and 28,375.54

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Solution

The fourth proportional to 61,687.46, 92,517.35 and 28,375.54 is: 42,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687.46 : 92,517.35 = 28,375.54 : x
  2. Step 2: Convert to fraction form
    61,687.46/92,517.35 = 28,375.54/x
  3. Step 3: Cross multiply
    61,687.46x = 92,517.35 × 28,375.54
  4. Step 4: Simplify right side
    61,687.46x = 2,625,229,765.62
  5. Step 5: Solve for x
    x = 2,625,229,765.62/61,687.46
  6. Step 6: Final answer
    x = 42,556.94

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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.