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Finding the Fourth Proportional to 33.42, 46.17 and 22.53

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Solution

The fourth proportional to 33.42, 46.17 and 22.53 is: 31.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.42 : 46.17 = 22.53 : x
  2. Step 2: Convert to fraction form
    33.42/46.17 = 22.53/x
  3. Step 3: Cross multiply
    33.42x = 46.17 × 22.53
  4. Step 4: Simplify right side
    33.42x = 1,040.21
  5. Step 5: Solve for x
    x = 1,040.21/33.42
  6. Step 6: Final answer
    x = 31.13

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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.