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Finding the Fourth Proportional to 16.96, 23.45 and 14.53

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Solution

The fourth proportional to 16.96, 23.45 and 14.53 is: 20.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.96 : 23.45 = 14.53 : x
  2. Step 2: Convert to fraction form
    16.96/23.45 = 14.53/x
  3. Step 3: Cross multiply
    16.96x = 23.45 × 14.53
  4. Step 4: Simplify right side
    16.96x = 340.73
  5. Step 5: Solve for x
    x = 340.73/16.96
  6. Step 6: Final answer
    x = 20.09

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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.