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Finding the Fourth Proportional to 18,241.26, 27,350.92 and 7,134.72

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Solution

The fourth proportional to 18,241.26, 27,350.92 and 7,134.72 is: 10,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.26 : 27,350.92 = 7,134.72 : x
  2. Step 2: Convert to fraction form
    18,241.26/27,350.92 = 7,134.72/x
  3. Step 3: Cross multiply
    18,241.26x = 27,350.92 × 7,134.72
  4. Step 4: Simplify right side
    18,241.26x = 195,141,155.94
  5. Step 5: Solve for x
    x = 195,141,155.94/18,241.26
  6. Step 6: Final answer
    x = 10,697.79

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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.