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Finding the Fourth Proportional to 5,220.05, 7,831.99 and 2,447.62

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Solution

The fourth proportional to 5,220.05, 7,831.99 and 2,447.62 is: 3,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.05 : 7,831.99 = 2,447.62 : x
  2. Step 2: Convert to fraction form
    5,220.05/7,831.99 = 2,447.62/x
  3. Step 3: Cross multiply
    5,220.05x = 7,831.99 × 2,447.62
  4. Step 4: Simplify right side
    5,220.05x = 19,169,718.84
  5. Step 5: Solve for x
    x = 19,169,718.84/5,220.05
  6. Step 6: Final answer
    x = 3,672.33

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