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Finding the Fourth Proportional to 18,481.73, 27,722.57 and 7,391.01

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Solution

The fourth proportional to 18,481.73, 27,722.57 and 7,391.01 is: 11,086.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.73 : 27,722.57 = 7,391.01 : x
  2. Step 2: Convert to fraction form
    18,481.73/27,722.57 = 7,391.01/x
  3. Step 3: Cross multiply
    18,481.73x = 27,722.57 × 7,391.01
  4. Step 4: Simplify right side
    18,481.73x = 204,897,755.14
  5. Step 5: Solve for x
    x = 204,897,755.14/18,481.73
  6. Step 6: Final answer
    x = 11,086.50

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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.