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Finding the Fourth Proportional to 59.31, 81.86 and 34.76

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Solution

The fourth proportional to 59.31, 81.86 and 34.76 is: 47.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.31 : 81.86 = 34.76 : x
  2. Step 2: Convert to fraction form
    59.31/81.86 = 34.76/x
  3. Step 3: Cross multiply
    59.31x = 81.86 × 34.76
  4. Step 4: Simplify right side
    59.31x = 2,845.48
  5. Step 5: Solve for x
    x = 2,845.48/59.31
  6. Step 6: Final answer
    x = 47.98

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