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Finding the Fourth Proportional to 24.31, 33.63 and 19.44

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Solution

The fourth proportional to 24.31, 33.63 and 19.44 is: 26.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.31 : 33.63 = 19.44 : x
  2. Step 2: Convert to fraction form
    24.31/33.63 = 19.44/x
  3. Step 3: Cross multiply
    24.31x = 33.63 × 19.44
  4. Step 4: Simplify right side
    24.31x = 653.77
  5. Step 5: Solve for x
    x = 653.77/24.31
  6. Step 6: Final answer
    x = 26.89

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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.