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Finding the Fourth Proportional to 57,714.70, 86,572.05 and 35,455.90

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Solution

The fourth proportional to 57,714.70, 86,572.05 and 35,455.90 is: 53,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,714.70 : 86,572.05 = 35,455.90 : x
  2. Step 2: Convert to fraction form
    57,714.70/86,572.05 = 35,455.90/x
  3. Step 3: Cross multiply
    57,714.70x = 86,572.05 × 35,455.90
  4. Step 4: Simplify right side
    57,714.70x = 3,069,489,947.60
  5. Step 5: Solve for x
    x = 3,069,489,947.60/57,714.70
  6. Step 6: Final answer
    x = 53,183.85

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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.