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Finding the Fourth Proportional to 18,454.92, 27,684.81 and 6,766.62

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Solution

The fourth proportional to 18,454.92, 27,684.81 and 6,766.62 is: 10,150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.92 : 27,684.81 = 6,766.62 : x
  2. Step 2: Convert to fraction form
    18,454.92/27,684.81 = 6,766.62/x
  3. Step 3: Cross multiply
    18,454.92x = 27,684.81 × 6,766.62
  4. Step 4: Simplify right side
    18,454.92x = 187,332,589.04
  5. Step 5: Solve for x
    x = 187,332,589.04/18,454.92
  6. Step 6: Final answer
    x = 10,150.82

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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.