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Finding the Fourth Proportional to 16.97, 23.42 and 16.44

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Solution

The fourth proportional to 16.97, 23.42 and 16.44 is: 22.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.97 : 23.42 = 16.44 : x
  2. Step 2: Convert to fraction form
    16.97/23.42 = 16.44/x
  3. Step 3: Cross multiply
    16.97x = 23.42 × 16.44
  4. Step 4: Simplify right side
    16.97x = 384.99
  5. Step 5: Solve for x
    x = 384.99/16.97
  6. Step 6: Final answer
    x = 22.69

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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.