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Finding the Fourth Proportional to 33.63, 50.50 and 31.26

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Solution

The fourth proportional to 33.63, 50.50 and 31.26 is: 46.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.63 : 50.50 = 31.26 : x
  2. Step 2: Convert to fraction form
    33.63/50.50 = 31.26/x
  3. Step 3: Cross multiply
    33.63x = 50.50 × 31.26
  4. Step 4: Simplify right side
    33.63x = 1,578.63
  5. Step 5: Solve for x
    x = 1,578.63/33.63
  6. Step 6: Final answer
    x = 46.94

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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.