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Finding the Fourth Proportional to 18,049.70, 27,007.98 and 10,938.04

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Solution

The fourth proportional to 18,049.70, 27,007.98 and 10,938.04 is: 16,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,049.70 : 27,007.98 = 10,938.04 : x
  2. Step 2: Convert to fraction form
    18,049.70/27,007.98 = 10,938.04/x
  3. Step 3: Cross multiply
    18,049.70x = 27,007.98 × 10,938.04
  4. Step 4: Simplify right side
    18,049.70x = 295,414,365.56
  5. Step 5: Solve for x
    x = 295,414,365.56/18,049.70
  6. Step 6: Final answer
    x = 16,366.72

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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.