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Finding the Fourth Proportional to 16.35, 22.46 and 13.62

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Solution

The fourth proportional to 16.35, 22.46 and 13.62 is: 18.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.35 : 22.46 = 13.62 : x
  2. Step 2: Convert to fraction form
    16.35/22.46 = 13.62/x
  3. Step 3: Cross multiply
    16.35x = 22.46 × 13.62
  4. Step 4: Simplify right side
    16.35x = 305.91
  5. Step 5: Solve for x
    x = 305.91/16.35
  6. Step 6: Final answer
    x = 18.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.