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Finding the Fourth Proportional to 33.53, 46.44 and 31.32

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Solution

The fourth proportional to 33.53, 46.44 and 31.32 is: 43.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.53 : 46.44 = 31.32 : x
  2. Step 2: Convert to fraction form
    33.53/46.44 = 31.32/x
  3. Step 3: Cross multiply
    33.53x = 46.44 × 31.32
  4. Step 4: Simplify right side
    33.53x = 1,454.56
  5. Step 5: Solve for x
    x = 1,454.56/33.53
  6. Step 6: Final answer
    x = 43.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.