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Finding the Fourth Proportional to 78.85, 118.25 and 24.00

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Solution

The fourth proportional to 78.85, 118.25 and 24.00 is: 35.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78.85 : 118.25 = 24.00 : x
  2. Step 2: Convert to fraction form
    78.85/118.25 = 24.00/x
  3. Step 3: Cross multiply
    78.85x = 118.25 × 24.00
  4. Step 4: Simplify right side
    78.85x = 2,837.59
  5. Step 5: Solve for x
    x = 2,837.59/78.85
  6. Step 6: Final answer
    x = 35.99

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