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Finding the Fourth Proportional to 24.20, 33.36 and 23.64

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Solution

The fourth proportional to 24.20, 33.36 and 23.64 is: 32.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.20 : 33.36 = 23.64 : x
  2. Step 2: Convert to fraction form
    24.20/33.36 = 23.64/x
  3. Step 3: Cross multiply
    24.20x = 33.36 × 23.64
  4. Step 4: Simplify right side
    24.20x = 788.52
  5. Step 5: Solve for x
    x = 788.52/24.20
  6. Step 6: Final answer
    x = 32.59

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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.