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Finding the Fourth Proportional to 23.52, 32.50 and 20.44

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Solution

The fourth proportional to 23.52, 32.50 and 20.44 is: 28.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.52 : 32.50 = 20.44 : x
  2. Step 2: Convert to fraction form
    23.52/32.50 = 20.44/x
  3. Step 3: Cross multiply
    23.52x = 32.50 × 20.44
  4. Step 4: Simplify right side
    23.52x = 664.30
  5. Step 5: Solve for x
    x = 664.30/23.52
  6. Step 6: Final answer
    x = 28.24

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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.