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Finding the Fourth Proportional to 22.44, 33.68 and 10.43

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Solution

The fourth proportional to 22.44, 33.68 and 10.43 is: 15.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.44 : 33.68 = 10.43 : x
  2. Step 2: Convert to fraction form
    22.44/33.68 = 10.43/x
  3. Step 3: Cross multiply
    22.44x = 33.68 × 10.43
  4. Step 4: Simplify right side
    22.44x = 351.28
  5. Step 5: Solve for x
    x = 351.28/22.44
  6. Step 6: Final answer
    x = 15.65

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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.