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Finding the Fourth Proportional to 57,053.84, 85,591.48 and 25,891.28

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Solution

The fourth proportional to 57,053.84, 85,591.48 and 25,891.28 is: 38,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,053.84 : 85,591.48 = 25,891.28 : x
  2. Step 2: Convert to fraction form
    57,053.84/85,591.48 = 25,891.28/x
  3. Step 3: Cross multiply
    57,053.84x = 85,591.48 × 25,891.28
  4. Step 4: Simplify right side
    57,053.84x = 2,216,072,974.29
  5. Step 5: Solve for x
    x = 2,216,072,974.29/57,053.84
  6. Step 6: Final answer
    x = 38,841.78

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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.