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Finding the Fourth Proportional to 7,194.81, 10,785.83 and 2,811.27

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Solution

The fourth proportional to 7,194.81, 10,785.83 and 2,811.27 is: 4,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.81 : 10,785.83 = 2,811.27 : x
  2. Step 2: Convert to fraction form
    7,194.81/10,785.83 = 2,811.27/x
  3. Step 3: Cross multiply
    7,194.81x = 10,785.83 × 2,811.27
  4. Step 4: Simplify right side
    7,194.81x = 30,321,866.25
  5. Step 5: Solve for x
    x = 30,321,866.25/7,194.81
  6. Step 6: Final answer
    x = 4,214.41

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