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Finding the Fourth Proportional to 69,507.76, 104,261.76 and 16,917.28

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Solution

The fourth proportional to 69,507.76, 104,261.76 and 16,917.28 is: 25,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,507.76 : 104,261.76 = 16,917.28 : x
  2. Step 2: Convert to fraction form
    69,507.76/104,261.76 = 16,917.28/x
  3. Step 3: Cross multiply
    69,507.76x = 104,261.76 × 16,917.28
  4. Step 4: Simplify right side
    69,507.76x = 1,763,825,387.21
  5. Step 5: Solve for x
    x = 1,763,825,387.21/69,507.76
  6. Step 6: Final answer
    x = 25,375.95

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