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Finding the Fourth Proportional to 69.82, 104.82 and 67.48

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Solution

The fourth proportional to 69.82, 104.82 and 67.48 is: 101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.82 : 104.82 = 67.48 : x
  2. Step 2: Convert to fraction form
    69.82/104.82 = 67.48/x
  3. Step 3: Cross multiply
    69.82x = 104.82 × 67.48
  4. Step 4: Simplify right side
    69.82x = 7,073.25
  5. Step 5: Solve for x
    x = 7,073.25/69.82
  6. Step 6: Final answer
    x = 101.31

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