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Finding the Fourth Proportional to 29, 43.48 and 16.96

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Solution

The fourth proportional to 29, 43.48 and 16.96 is: 25.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29 : 43.48 = 16.96 : x
  2. Step 2: Convert to fraction form
    29/43.48 = 16.96/x
  3. Step 3: Cross multiply
    29x = 43.48 × 16.96
  4. Step 4: Simplify right side
    29x = 737.16
  5. Step 5: Solve for x
    x = 737.16/29
  6. Step 6: Final answer
    x = 25.42

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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.