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Finding the Fourth Proportional to 18,635.48, 27,954.24 and 7,540.52

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Solution

The fourth proportional to 18,635.48, 27,954.24 and 7,540.52 is: 11,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.48 : 27,954.24 = 7,540.52 : x
  2. Step 2: Convert to fraction form
    18,635.48/27,954.24 = 7,540.52/x
  3. Step 3: Cross multiply
    18,635.48x = 27,954.24 × 7,540.52
  4. Step 4: Simplify right side
    18,635.48x = 210,789,505.80
  5. Step 5: Solve for x
    x = 210,789,505.80/18,635.48
  6. Step 6: Final answer
    x = 11,311.19

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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.