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Finding the Fourth Proportional to 33.26, 45.67 and 33.20

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Solution

The fourth proportional to 33.26, 45.67 and 33.20 is: 45.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.26 : 45.67 = 33.20 : x
  2. Step 2: Convert to fraction form
    33.26/45.67 = 33.20/x
  3. Step 3: Cross multiply
    33.26x = 45.67 × 33.20
  4. Step 4: Simplify right side
    33.26x = 1,516.24
  5. Step 5: Solve for x
    x = 1,516.24/33.26
  6. Step 6: Final answer
    x = 45.59

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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.