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Finding the Fourth Proportional to 24.46, 36.66 and 12.43

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Solution

The fourth proportional to 24.46, 36.66 and 12.43 is: 18.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.46 : 36.66 = 12.43 : x
  2. Step 2: Convert to fraction form
    24.46/36.66 = 12.43/x
  3. Step 3: Cross multiply
    24.46x = 36.66 × 12.43
  4. Step 4: Simplify right side
    24.46x = 455.59
  5. Step 5: Solve for x
    x = 455.59/24.46
  6. Step 6: Final answer
    x = 18.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.