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Finding the Fourth Proportional to 6,850.90, 9,454.55 and 3,867

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Solution

The fourth proportional to 6,850.90, 9,454.55 and 3,867 is: 5,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,850.90 : 9,454.55 = 3,867 : x
  2. Step 2: Convert to fraction form
    6,850.90/9,454.55 = 3,867/x
  3. Step 3: Cross multiply
    6,850.90x = 9,454.55 × 3,867
  4. Step 4: Simplify right side
    6,850.90x = 36,560,744.85
  5. Step 5: Solve for x
    x = 36,560,744.85/6,850.90
  6. Step 6: Final answer
    x = 5,336.63

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