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Finding the Fourth Proportional to 18,404.29, 27,591.81 and 8,008.75

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Solution

The fourth proportional to 18,404.29, 27,591.81 and 8,008.75 is: 12,006.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.29 : 27,591.81 = 8,008.75 : x
  2. Step 2: Convert to fraction form
    18,404.29/27,591.81 = 8,008.75/x
  3. Step 3: Cross multiply
    18,404.29x = 27,591.81 × 8,008.75
  4. Step 4: Simplify right side
    18,404.29x = 220,975,908.34
  5. Step 5: Solve for x
    x = 220,975,908.34/18,404.29
  6. Step 6: Final answer
    x = 12,006.76

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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.