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Finding the Fourth Proportional to 18,215.52, 27,300.24 and 8,857.68

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Solution

The fourth proportional to 18,215.52, 27,300.24 and 8,857.68 is: 13,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.52 : 27,300.24 = 8,857.68 : x
  2. Step 2: Convert to fraction form
    18,215.52/27,300.24 = 8,857.68/x
  3. Step 3: Cross multiply
    18,215.52x = 27,300.24 × 8,857.68
  4. Step 4: Simplify right side
    18,215.52x = 241,816,789.84
  5. Step 5: Solve for x
    x = 241,816,789.84/18,215.52
  6. Step 6: Final answer
    x = 13,275.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.