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Finding the Fourth Proportional to 61.31, 91.94 and 32.42

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Solution

The fourth proportional to 61.31, 91.94 and 32.42 is: 48.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.31 : 91.94 = 32.42 : x
  2. Step 2: Convert to fraction form
    61.31/91.94 = 32.42/x
  3. Step 3: Cross multiply
    61.31x = 91.94 × 32.42
  4. Step 4: Simplify right side
    61.31x = 2,980.69
  5. Step 5: Solve for x
    x = 2,980.69/61.31
  6. Step 6: Final answer
    x = 48.62

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