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Finding the Fourth Proportional to 8,906.74, 13,375.30 and 7,424.44

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Solution

The fourth proportional to 8,906.74, 13,375.30 and 7,424.44 is: 11,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.74 : 13,375.30 = 7,424.44 : x
  2. Step 2: Convert to fraction form
    8,906.74/13,375.30 = 7,424.44/x
  3. Step 3: Cross multiply
    8,906.74x = 13,375.30 × 7,424.44
  4. Step 4: Simplify right side
    8,906.74x = 99,304,112.33
  5. Step 5: Solve for x
    x = 99,304,112.33/8,906.74
  6. Step 6: Final answer
    x = 11,149.32

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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.