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Finding the Fourth Proportional to 33.96, 46.90 and 31.94

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Solution

The fourth proportional to 33.96, 46.90 and 31.94 is: 44.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.96 : 46.90 = 31.94 : x
  2. Step 2: Convert to fraction form
    33.96/46.90 = 31.94/x
  3. Step 3: Cross multiply
    33.96x = 46.90 × 31.94
  4. Step 4: Simplify right side
    33.96x = 1,497.99
  5. Step 5: Solve for x
    x = 1,497.99/33.96
  6. Step 6: Final answer
    x = 44.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.