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Finding the Fourth Proportional to 16.12, 24.24 and 13.48

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Solution

The fourth proportional to 16.12, 24.24 and 13.48 is: 20.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.12 : 24.24 = 13.48 : x
  2. Step 2: Convert to fraction form
    16.12/24.24 = 13.48/x
  3. Step 3: Cross multiply
    16.12x = 24.24 × 13.48
  4. Step 4: Simplify right side
    16.12x = 326.76
  5. Step 5: Solve for x
    x = 326.76/16.12
  6. Step 6: Final answer
    x = 20.27

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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.