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Finding the Fourth Proportional to 18,405.12, 27,614.97 and 6,726.54

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Solution

The fourth proportional to 18,405.12, 27,614.97 and 6,726.54 is: 10,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.12 : 27,614.97 = 6,726.54 : x
  2. Step 2: Convert to fraction form
    18,405.12/27,614.97 = 6,726.54/x
  3. Step 3: Cross multiply
    18,405.12x = 27,614.97 × 6,726.54
  4. Step 4: Simplify right side
    18,405.12x = 185,753,200.30
  5. Step 5: Solve for x
    x = 185,753,200.30/18,405.12
  6. Step 6: Final answer
    x = 10,092.47

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1.5x scale

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.