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Finding the Fourth Proportional to 29.41, 44.12 and 19.31

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Solution

The fourth proportional to 29.41, 44.12 and 19.31 is: 28.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.41 : 44.12 = 19.31 : x
  2. Step 2: Convert to fraction form
    29.41/44.12 = 19.31/x
  3. Step 3: Cross multiply
    29.41x = 44.12 × 19.31
  4. Step 4: Simplify right side
    29.41x = 851.78
  5. Step 5: Solve for x
    x = 851.78/29.41
  6. Step 6: Final answer
    x = 28.96

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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.