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Finding the Fourth Proportional to 7,998.22, 11,976.82 and 5,915.10

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Solution

The fourth proportional to 7,998.22, 11,976.82 and 5,915.10 is: 8,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.22 : 11,976.82 = 5,915.10 : x
  2. Step 2: Convert to fraction form
    7,998.22/11,976.82 = 5,915.10/x
  3. Step 3: Cross multiply
    7,998.22x = 11,976.82 × 5,915.10
  4. Step 4: Simplify right side
    7,998.22x = 70,844,087.98
  5. Step 5: Solve for x
    x = 70,844,087.98/7,998.22
  6. Step 6: Final answer
    x = 8,857.48

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