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Finding the Fourth Proportional to 8,396.80, 11,581.28 and 8,024.56

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Solution

The fourth proportional to 8,396.80, 11,581.28 and 8,024.56 is: 11,067.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.80 : 11,581.28 = 8,024.56 : x
  2. Step 2: Convert to fraction form
    8,396.80/11,581.28 = 8,024.56/x
  3. Step 3: Cross multiply
    8,396.80x = 11,581.28 × 8,024.56
  4. Step 4: Simplify right side
    8,396.80x = 92,934,676.24
  5. Step 5: Solve for x
    x = 92,934,676.24/8,396.80
  6. Step 6: Final answer
    x = 11,067.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.