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Finding the Fourth Proportional to 18.11, 24.96 and 14.02

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Solution

The fourth proportional to 18.11, 24.96 and 14.02 is: 19.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.11 : 24.96 = 14.02 : x
  2. Step 2: Convert to fraction form
    18.11/24.96 = 14.02/x
  3. Step 3: Cross multiply
    18.11x = 24.96 × 14.02
  4. Step 4: Simplify right side
    18.11x = 349.81
  5. Step 5: Solve for x
    x = 349.81/18.11
  6. Step 6: Final answer
    x = 19.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.