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Finding the Fourth Proportional to 18,007.48, 27,020.92 and 8,773.48

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Solution

The fourth proportional to 18,007.48, 27,020.92 and 8,773.48 is: 13,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.48 : 27,020.92 = 8,773.48 : x
  2. Step 2: Convert to fraction form
    18,007.48/27,020.92 = 8,773.48/x
  3. Step 3: Cross multiply
    18,007.48x = 27,020.92 × 8,773.48
  4. Step 4: Simplify right side
    18,007.48x = 237,067,501.20
  5. Step 5: Solve for x
    x = 237,067,501.20/18,007.48
  6. Step 6: Final answer
    x = 13,164.95

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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.