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Finding the Fourth Proportional to 18,253.92, 27,380.88 and 6,560.76

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Solution

The fourth proportional to 18,253.92, 27,380.88 and 6,560.76 is: 9,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.92 : 27,380.88 = 6,560.76 : x
  2. Step 2: Convert to fraction form
    18,253.92/27,380.88 = 6,560.76/x
  3. Step 3: Cross multiply
    18,253.92x = 27,380.88 × 6,560.76
  4. Step 4: Simplify right side
    18,253.92x = 179,639,382.27
  5. Step 5: Solve for x
    x = 179,639,382.27/18,253.92
  6. Step 6: Final answer
    x = 9,841.14

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Double scale
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Similar ratio
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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.