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Finding the Fourth Proportional to 18,573.24, 27,861 and 5,426.52

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Solution

The fourth proportional to 18,573.24, 27,861 and 5,426.52 is: 8,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.24 : 27,861 = 5,426.52 : x
  2. Step 2: Convert to fraction form
    18,573.24/27,861 = 5,426.52/x
  3. Step 3: Cross multiply
    18,573.24x = 27,861 × 5,426.52
  4. Step 4: Simplify right side
    18,573.24x = 151,188,273.72
  5. Step 5: Solve for x
    x = 151,188,273.72/18,573.24
  6. Step 6: Final answer
    x = 8,140.11

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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.