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Finding the Fourth Proportional to 24.36, 33.64 and 20.08

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Solution

The fourth proportional to 24.36, 33.64 and 20.08 is: 27.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.36 : 33.64 = 20.08 : x
  2. Step 2: Convert to fraction form
    24.36/33.64 = 20.08/x
  3. Step 3: Cross multiply
    24.36x = 33.64 × 20.08
  4. Step 4: Simplify right side
    24.36x = 675.49
  5. Step 5: Solve for x
    x = 675.49/24.36
  6. Step 6: Final answer
    x = 27.73

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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.