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Finding the Fourth Proportional to 3,382.26, 5,069.34 and 1,919.40

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Solution

The fourth proportional to 3,382.26, 5,069.34 and 1,919.40 is: 2,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.26 : 5,069.34 = 1,919.40 : x
  2. Step 2: Convert to fraction form
    3,382.26/5,069.34 = 1,919.40/x
  3. Step 3: Cross multiply
    3,382.26x = 5,069.34 × 1,919.40
  4. Step 4: Simplify right side
    3,382.26x = 9,730,091.20
  5. Step 5: Solve for x
    x = 9,730,091.20/3,382.26
  6. Step 6: Final answer
    x = 2,876.80

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