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Finding the Fourth Proportional to 57,228.56, 85,826.42 and 17,251.44

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Solution

The fourth proportional to 57,228.56, 85,826.42 and 17,251.44 is: 25,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,228.56 : 85,826.42 = 17,251.44 : x
  2. Step 2: Convert to fraction form
    57,228.56/85,826.42 = 17,251.44/x
  3. Step 3: Cross multiply
    57,228.56x = 85,826.42 × 17,251.44
  4. Step 4: Simplify right side
    57,228.56x = 1,480,629,335.04
  5. Step 5: Solve for x
    x = 1,480,629,335.04/57,228.56
  6. Step 6: Final answer
    x = 25,872.21

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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.