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Finding the Fourth Proportional to 29.44, 43.94 and 25.39

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Solution

The fourth proportional to 29.44, 43.94 and 25.39 is: 37.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.44 : 43.94 = 25.39 : x
  2. Step 2: Convert to fraction form
    29.44/43.94 = 25.39/x
  3. Step 3: Cross multiply
    29.44x = 43.94 × 25.39
  4. Step 4: Simplify right side
    29.44x = 1,115.29
  5. Step 5: Solve for x
    x = 1,115.29/29.44
  6. Step 6: Final answer
    x = 37.89

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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.