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Finding the Fourth Proportional to 22.43, 33.67 and 14.72

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Solution

The fourth proportional to 22.43, 33.67 and 14.72 is: 22.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.43 : 33.67 = 14.72 : x
  2. Step 2: Convert to fraction form
    22.43/33.67 = 14.72/x
  3. Step 3: Cross multiply
    22.43x = 33.67 × 14.72
  4. Step 4: Simplify right side
    22.43x = 495.72
  5. Step 5: Solve for x
    x = 495.72/22.43
  6. Step 6: Final answer
    x = 22.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.