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Finding the Fourth Proportional to 26.74, 39.92 and 23.73

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Solution

The fourth proportional to 26.74, 39.92 and 23.73 is: 35.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.74 : 39.92 = 23.73 : x
  2. Step 2: Convert to fraction form
    26.74/39.92 = 23.73/x
  3. Step 3: Cross multiply
    26.74x = 39.92 × 23.73
  4. Step 4: Simplify right side
    26.74x = 947.30
  5. Step 5: Solve for x
    x = 947.30/26.74
  6. Step 6: Final answer
    x = 35.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.