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Finding the Fourth Proportional to 18,608.87, 27,884.12 and 15,824.09

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Solution

The fourth proportional to 18,608.87, 27,884.12 and 15,824.09 is: 23,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.87 : 27,884.12 = 15,824.09 : x
  2. Step 2: Convert to fraction form
    18,608.87/27,884.12 = 15,824.09/x
  3. Step 3: Cross multiply
    18,608.87x = 27,884.12 × 15,824.09
  4. Step 4: Simplify right side
    18,608.87x = 441,240,605.91
  5. Step 5: Solve for x
    x = 441,240,605.91/18,608.87
  6. Step 6: Final answer
    x = 23,711.31

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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.