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Finding the Fourth Proportional to 17,759.62, 26,640.87 and 5,912.97

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Solution

The fourth proportional to 17,759.62, 26,640.87 and 5,912.97 is: 8,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.62 : 26,640.87 = 5,912.97 : x
  2. Step 2: Convert to fraction form
    17,759.62/26,640.87 = 5,912.97/x
  3. Step 3: Cross multiply
    17,759.62x = 26,640.87 × 5,912.97
  4. Step 4: Simplify right side
    17,759.62x = 157,526,665.08
  5. Step 5: Solve for x
    x = 157,526,665.08/17,759.62
  6. Step 6: Final answer
    x = 8,869.93

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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.