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Finding the Fourth Proportional to 24.25, 33.46 and 13.33

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Solution

The fourth proportional to 24.25, 33.46 and 13.33 is: 18.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.25 : 33.46 = 13.33 : x
  2. Step 2: Convert to fraction form
    24.25/33.46 = 13.33/x
  3. Step 3: Cross multiply
    24.25x = 33.46 × 13.33
  4. Step 4: Simplify right side
    24.25x = 446.08
  5. Step 5: Solve for x
    x = 446.08/24.25
  6. Step 6: Final answer
    x = 18.40

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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.