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Finding the Fourth Proportional to 57,775.53, 86,695.32 and 28,193.61

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Solution

The fourth proportional to 57,775.53, 86,695.32 and 28,193.61 is: 42,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,775.53 : 86,695.32 = 28,193.61 : x
  2. Step 2: Convert to fraction form
    57,775.53/86,695.32 = 28,193.61/x
  3. Step 3: Cross multiply
    57,775.53x = 86,695.32 × 28,193.61
  4. Step 4: Simplify right side
    57,775.53x = 2,444,254,040.91
  5. Step 5: Solve for x
    x = 2,444,254,040.91/57,775.53
  6. Step 6: Final answer
    x = 42,306.04

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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.