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Finding the Fourth Proportional to 55,940.76, 83,891.15 and 18,493.92

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Solution

The fourth proportional to 55,940.76, 83,891.15 and 18,493.92 is: 27,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.76 : 83,891.15 = 18,493.92 : x
  2. Step 2: Convert to fraction form
    55,940.76/83,891.15 = 18,493.92/x
  3. Step 3: Cross multiply
    55,940.76x = 83,891.15 × 18,493.92
  4. Step 4: Simplify right side
    55,940.76x = 1,551,475,704.88
  5. Step 5: Solve for x
    x = 1,551,475,704.88/55,940.76
  6. Step 6: Final answer
    x = 27,734.26

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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.