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Finding the Fourth Proportional to 26.24, 35.92 and 25.42

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Solution

The fourth proportional to 26.24, 35.92 and 25.42 is: 34.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.24 : 35.92 = 25.42 : x
  2. Step 2: Convert to fraction form
    26.24/35.92 = 25.42/x
  3. Step 3: Cross multiply
    26.24x = 35.92 × 25.42
  4. Step 4: Simplify right side
    26.24x = 913.09
  5. Step 5: Solve for x
    x = 913.09/26.24
  6. Step 6: Final answer
    x = 34.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.