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Finding the Fourth Proportional to 28,101.06, 42,150.78 and 7,324.56

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Solution

The fourth proportional to 28,101.06, 42,150.78 and 7,324.56 is: 10,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.06 : 42,150.78 = 7,324.56 : x
  2. Step 2: Convert to fraction form
    28,101.06/42,150.78 = 7,324.56/x
  3. Step 3: Cross multiply
    28,101.06x = 42,150.78 × 7,324.56
  4. Step 4: Simplify right side
    28,101.06x = 308,735,917.16
  5. Step 5: Solve for x
    x = 308,735,917.16/28,101.06
  6. Step 6: Final answer
    x = 10,986.63

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