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Finding the Fourth Proportional to 5,286.36, 7,914.84 and 2,676.48

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Solution

The fourth proportional to 5,286.36, 7,914.84 and 2,676.48 is: 4,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.36 : 7,914.84 = 2,676.48 : x
  2. Step 2: Convert to fraction form
    5,286.36/7,914.84 = 2,676.48/x
  3. Step 3: Cross multiply
    5,286.36x = 7,914.84 × 2,676.48
  4. Step 4: Simplify right side
    5,286.36x = 21,183,910.96
  5. Step 5: Solve for x
    x = 21,183,910.96/5,286.36
  6. Step 6: Final answer
    x = 4,007.28

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