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Finding the Fourth Proportional to 89.62, 134.32 and 43.83

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Solution

The fourth proportional to 89.62, 134.32 and 43.83 is: 65.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.62 : 134.32 = 43.83 : x
  2. Step 2: Convert to fraction form
    89.62/134.32 = 43.83/x
  3. Step 3: Cross multiply
    89.62x = 134.32 × 43.83
  4. Step 4: Simplify right side
    89.62x = 5,887.47
  5. Step 5: Solve for x
    x = 5,887.47/89.62
  6. Step 6: Final answer
    x = 65.69

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