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Finding the Fourth Proportional to 18.14, 25.02 and 14.27

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Solution

The fourth proportional to 18.14, 25.02 and 14.27 is: 19.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.14 : 25.02 = 14.27 : x
  2. Step 2: Convert to fraction form
    18.14/25.02 = 14.27/x
  3. Step 3: Cross multiply
    18.14x = 25.02 × 14.27
  4. Step 4: Simplify right side
    18.14x = 356.91
  5. Step 5: Solve for x
    x = 356.91/18.14
  6. Step 6: Final answer
    x = 19.68

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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.