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Finding the Fourth Proportional to 89.31, 133.98 and 37.25

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Solution

The fourth proportional to 89.31, 133.98 and 37.25 is: 55.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.31 : 133.98 = 37.25 : x
  2. Step 2: Convert to fraction form
    89.31/133.98 = 37.25/x
  3. Step 3: Cross multiply
    89.31x = 133.98 × 37.25
  4. Step 4: Simplify right side
    89.31x = 4,989.90
  5. Step 5: Solve for x
    x = 4,989.90/89.31
  6. Step 6: Final answer
    x = 55.87

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