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Finding the Fourth Proportional to 17,958.62, 26,939.46 and 5,481.44

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Solution

The fourth proportional to 17,958.62, 26,939.46 and 5,481.44 is: 8,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.62 : 26,939.46 = 5,481.44 : x
  2. Step 2: Convert to fraction form
    17,958.62/26,939.46 = 5,481.44/x
  3. Step 3: Cross multiply
    17,958.62x = 26,939.46 × 5,481.44
  4. Step 4: Simplify right side
    17,958.62x = 147,667,033.62
  5. Step 5: Solve for x
    x = 147,667,033.62/17,958.62
  6. Step 6: Final answer
    x = 8,222.63

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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.