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Finding the Fourth Proportional to 57,803.43, 86,700.59 and 18,360.89

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Solution

The fourth proportional to 57,803.43, 86,700.59 and 18,360.89 is: 27,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.43 : 86,700.59 = 18,360.89 : x
  2. Step 2: Convert to fraction form
    57,803.43/86,700.59 = 18,360.89/x
  3. Step 3: Cross multiply
    57,803.43x = 86,700.59 × 18,360.89
  4. Step 4: Simplify right side
    57,803.43x = 1,591,899,470.62
  5. Step 5: Solve for x
    x = 1,591,899,470.62/57,803.43
  6. Step 6: Final answer
    x = 27,539.88

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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.