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Finding the Fourth Proportional to 33.44, 50.12 and 19

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Solution

The fourth proportional to 33.44, 50.12 and 19 is: 28.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.44 : 50.12 = 19 : x
  2. Step 2: Convert to fraction form
    33.44/50.12 = 19/x
  3. Step 3: Cross multiply
    33.44x = 50.12 × 19
  4. Step 4: Simplify right side
    33.44x = 952.19
  5. Step 5: Solve for x
    x = 952.19/33.44
  6. Step 6: Final answer
    x = 28.47

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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.