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Finding the Fourth Proportional to 3,067.81, 4,230.98 and 2,591.60

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Solution

The fourth proportional to 3,067.81, 4,230.98 and 2,591.60 is: 3,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.81 : 4,230.98 = 2,591.60 : x
  2. Step 2: Convert to fraction form
    3,067.81/4,230.98 = 2,591.60/x
  3. Step 3: Cross multiply
    3,067.81x = 4,230.98 × 2,591.60
  4. Step 4: Simplify right side
    3,067.81x = 10,965,007.57
  5. Step 5: Solve for x
    x = 10,965,007.57/3,067.81
  6. Step 6: Final answer
    x = 3,574.22

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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.