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Finding the Fourth Proportional to 40,458.64, 60,687.86 and 10,876.47

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Solution

The fourth proportional to 40,458.64, 60,687.86 and 10,876.47 is: 16,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,458.64 : 60,687.86 = 10,876.47 : x
  2. Step 2: Convert to fraction form
    40,458.64/60,687.86 = 10,876.47/x
  3. Step 3: Cross multiply
    40,458.64x = 60,687.86 × 10,876.47
  4. Step 4: Simplify right side
    40,458.64x = 660,069,634.27
  5. Step 5: Solve for x
    x = 660,069,634.27/40,458.64
  6. Step 6: Final answer
    x = 16,314.68

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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.