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Finding the Fourth Proportional to 61,687.77, 92,517.82 and 28,375.85

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Solution

The fourth proportional to 61,687.77, 92,517.82 and 28,375.85 is: 42,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687.77 : 92,517.82 = 28,375.85 : x
  2. Step 2: Convert to fraction form
    61,687.77/92,517.82 = 28,375.85/x
  3. Step 3: Cross multiply
    61,687.77x = 92,517.82 × 28,375.85
  4. Step 4: Simplify right side
    61,687.77x = 2,625,271,782.65
  5. Step 5: Solve for x
    x = 2,625,271,782.65/61,687.77
  6. Step 6: Final answer
    x = 42,557.41

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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.