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Finding the Fourth Proportional to 33.76, 50.74 and 27

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Solution

The fourth proportional to 33.76, 50.74 and 27 is: 40.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.76 : 50.74 = 27 : x
  2. Step 2: Convert to fraction form
    33.76/50.74 = 27/x
  3. Step 3: Cross multiply
    33.76x = 50.74 × 27
  4. Step 4: Simplify right side
    33.76x = 1,369.98
  5. Step 5: Solve for x
    x = 1,369.98/33.76
  6. Step 6: Final answer
    x = 40.58

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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.