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Finding the Fourth Proportional to 33.83, 50.64 and 20.27

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Solution

The fourth proportional to 33.83, 50.64 and 20.27 is: 30.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.83 : 50.64 = 20.27 : x
  2. Step 2: Convert to fraction form
    33.83/50.64 = 20.27/x
  3. Step 3: Cross multiply
    33.83x = 50.64 × 20.27
  4. Step 4: Simplify right side
    33.83x = 1,026.47
  5. Step 5: Solve for x
    x = 1,026.47/33.83
  6. Step 6: Final answer
    x = 30.34

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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.