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Finding the Fourth Proportional to 24.07, 33.20 and 19.97

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Solution

The fourth proportional to 24.07, 33.20 and 19.97 is: 27.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.07 : 33.20 = 19.97 : x
  2. Step 2: Convert to fraction form
    24.07/33.20 = 19.97/x
  3. Step 3: Cross multiply
    24.07x = 33.20 × 19.97
  4. Step 4: Simplify right side
    24.07x = 662.74
  5. Step 5: Solve for x
    x = 662.74/24.07
  6. Step 6: Final answer
    x = 27.54

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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.