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Finding the Fourth Proportional to 33.71, 46.22 and 31.98

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Solution

The fourth proportional to 33.71, 46.22 and 31.98 is: 43.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.71 : 46.22 = 31.98 : x
  2. Step 2: Convert to fraction form
    33.71/46.22 = 31.98/x
  3. Step 3: Cross multiply
    33.71x = 46.22 × 31.98
  4. Step 4: Simplify right side
    33.71x = 1,477.96
  5. Step 5: Solve for x
    x = 1,477.96/33.71
  6. Step 6: Final answer
    x = 43.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.