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Finding the Fourth Proportional to 16.35, 24.49 and 13.67

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Solution

The fourth proportional to 16.35, 24.49 and 13.67 is: 20.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.35 : 24.49 = 13.67 : x
  2. Step 2: Convert to fraction form
    16.35/24.49 = 13.67/x
  3. Step 3: Cross multiply
    16.35x = 24.49 × 13.67
  4. Step 4: Simplify right side
    16.35x = 334.78
  5. Step 5: Solve for x
    x = 334.78/16.35
  6. Step 6: Final answer
    x = 20.48

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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.