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Finding the Fourth Proportional to 24.43, 33.71 and 13.51

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Solution

The fourth proportional to 24.43, 33.71 and 13.51 is: 18.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.43 : 33.71 = 13.51 : x
  2. Step 2: Convert to fraction form
    24.43/33.71 = 13.51/x
  3. Step 3: Cross multiply
    24.43x = 33.71 × 13.51
  4. Step 4: Simplify right side
    24.43x = 455.42
  5. Step 5: Solve for x
    x = 455.42/24.43
  6. Step 6: Final answer
    x = 18.64

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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.