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Finding the Fourth Proportional to 18,469.44, 25,497 and 11,399.76

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Solution

The fourth proportional to 18,469.44, 25,497 and 11,399.76 is: 15,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.44 : 25,497 = 11,399.76 : x
  2. Step 2: Convert to fraction form
    18,469.44/25,497 = 11,399.76/x
  3. Step 3: Cross multiply
    18,469.44x = 25,497 × 11,399.76
  4. Step 4: Simplify right side
    18,469.44x = 290,659,680.72
  5. Step 5: Solve for x
    x = 290,659,680.72/18,469.44
  6. Step 6: Final answer
    x = 15,737.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.