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Finding the Fourth Proportional to 26.96, 40.38 and 14.91

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Solution

The fourth proportional to 26.96, 40.38 and 14.91 is: 22.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.96 : 40.38 = 14.91 : x
  2. Step 2: Convert to fraction form
    26.96/40.38 = 14.91/x
  3. Step 3: Cross multiply
    26.96x = 40.38 × 14.91
  4. Step 4: Simplify right side
    26.96x = 601.86
  5. Step 5: Solve for x
    x = 601.86/26.96
  6. Step 6: Final answer
    x = 22.33

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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.