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Finding the Fourth Proportional to 5,721.76, 8,571.69 and 3,863.71

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Solution

The fourth proportional to 5,721.76, 8,571.69 and 3,863.71 is: 5,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.76 : 8,571.69 = 3,863.71 : x
  2. Step 2: Convert to fraction form
    5,721.76/8,571.69 = 3,863.71/x
  3. Step 3: Cross multiply
    5,721.76x = 8,571.69 × 3,863.71
  4. Step 4: Simplify right side
    5,721.76x = 33,118,524.37
  5. Step 5: Solve for x
    x = 33,118,524.37/5,721.76
  6. Step 6: Final answer
    x = 5,788.17

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