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Finding the Fourth Proportional to 7,680.96, 11,524.68 and 7,067.99

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Solution

The fourth proportional to 7,680.96, 11,524.68 and 7,067.99 is: 10,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.96 : 11,524.68 = 7,067.99 : x
  2. Step 2: Convert to fraction form
    7,680.96/11,524.68 = 7,067.99/x
  3. Step 3: Cross multiply
    7,680.96x = 11,524.68 × 7,067.99
  4. Step 4: Simplify right side
    7,680.96x = 81,456,351.80
  5. Step 5: Solve for x
    x = 81,456,351.80/7,680.96
  6. Step 6: Final answer
    x = 10,604.97

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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.