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Finding the Fourth Proportional to 26.75, 40.16 and 16.63

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Solution

The fourth proportional to 26.75, 40.16 and 16.63 is: 24.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.75 : 40.16 = 16.63 : x
  2. Step 2: Convert to fraction form
    26.75/40.16 = 16.63/x
  3. Step 3: Cross multiply
    26.75x = 40.16 × 16.63
  4. Step 4: Simplify right side
    26.75x = 667.58
  5. Step 5: Solve for x
    x = 667.58/26.75
  6. Step 6: Final answer
    x = 24.96

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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.