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Finding the Fourth Proportional to 16.12, 24.18 and 14.43

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Solution

The fourth proportional to 16.12, 24.18 and 14.43 is: 21.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.12 : 24.18 = 14.43 : x
  2. Step 2: Convert to fraction form
    16.12/24.18 = 14.43/x
  3. Step 3: Cross multiply
    16.12x = 24.18 × 14.43
  4. Step 4: Simplify right side
    16.12x = 348.92
  5. Step 5: Solve for x
    x = 348.92/16.12
  6. Step 6: Final answer
    x = 21.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.