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Finding the Fourth Proportional to 17,331.82, 25,976.85 and 7,958.91

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Solution

The fourth proportional to 17,331.82, 25,976.85 and 7,958.91 is: 11,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,331.82 : 25,976.85 = 7,958.91 : x
  2. Step 2: Convert to fraction form
    17,331.82/25,976.85 = 7,958.91/x
  3. Step 3: Cross multiply
    17,331.82x = 25,976.85 × 7,958.91
  4. Step 4: Simplify right side
    17,331.82x = 206,747,377.45
  5. Step 5: Solve for x
    x = 206,747,377.45/17,331.82
  6. Step 6: Final answer
    x = 11,928.77

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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.