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Finding the Fourth Proportional to 33.48, 46.24 and 25.31

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Solution

The fourth proportional to 33.48, 46.24 and 25.31 is: 34.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.48 : 46.24 = 25.31 : x
  2. Step 2: Convert to fraction form
    33.48/46.24 = 25.31/x
  3. Step 3: Cross multiply
    33.48x = 46.24 × 25.31
  4. Step 4: Simplify right side
    33.48x = 1,170.39
  5. Step 5: Solve for x
    x = 1,170.39/33.48
  6. Step 6: Final answer
    x = 34.96

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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.