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Finding the Fourth Proportional to 18,600.56, 27,900.47 and 5,452.64

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Solution

The fourth proportional to 18,600.56, 27,900.47 and 5,452.64 is: 8,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.56 : 27,900.47 = 5,452.64 : x
  2. Step 2: Convert to fraction form
    18,600.56/27,900.47 = 5,452.64/x
  3. Step 3: Cross multiply
    18,600.56x = 27,900.47 × 5,452.64
  4. Step 4: Simplify right side
    18,600.56x = 152,131,092.87
  5. Step 5: Solve for x
    x = 152,131,092.87/18,600.56
  6. Step 6: Final answer
    x = 8,178.85

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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.