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Finding the Fourth Proportional to 3,494.54, 5,241.81 and 3,280.70

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Solution

The fourth proportional to 3,494.54, 5,241.81 and 3,280.70 is: 4,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.54 : 5,241.81 = 3,280.70 : x
  2. Step 2: Convert to fraction form
    3,494.54/5,241.81 = 3,280.70/x
  3. Step 3: Cross multiply
    3,494.54x = 5,241.81 × 3,280.70
  4. Step 4: Simplify right side
    3,494.54x = 17,196,831.47
  5. Step 5: Solve for x
    x = 17,196,831.47/3,494.54
  6. Step 6: Final answer
    x = 4,921.05

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