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Finding the Fourth Proportional to 7,481.02, 11,221.55 and 2,800.84

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Solution

The fourth proportional to 7,481.02, 11,221.55 and 2,800.84 is: 4,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.02 : 11,221.55 = 2,800.84 : x
  2. Step 2: Convert to fraction form
    7,481.02/11,221.55 = 2,800.84/x
  3. Step 3: Cross multiply
    7,481.02x = 11,221.55 × 2,800.84
  4. Step 4: Simplify right side
    7,481.02x = 31,429,766.10
  5. Step 5: Solve for x
    x = 31,429,766.10/7,481.02
  6. Step 6: Final answer
    x = 4,201.27

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