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Finding the Fourth Proportional to 57,927.32, 86,793.78 and 40,353.56

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Solution

The fourth proportional to 57,927.32, 86,793.78 and 40,353.56 is: 60,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927.32 : 86,793.78 = 40,353.56 : x
  2. Step 2: Convert to fraction form
    57,927.32/86,793.78 = 40,353.56/x
  3. Step 3: Cross multiply
    57,927.32x = 86,793.78 × 40,353.56
  4. Step 4: Simplify right side
    57,927.32x = 3,502,438,008.86
  5. Step 5: Solve for x
    x = 3,502,438,008.86/57,927.32
  6. Step 6: Final answer
    x = 60,462.63

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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.