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Finding the Fourth Proportional to 29.57, 44.33 and 12.43

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Solution

The fourth proportional to 29.57, 44.33 and 12.43 is: 18.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.57 : 44.33 = 12.43 : x
  2. Step 2: Convert to fraction form
    29.57/44.33 = 12.43/x
  3. Step 3: Cross multiply
    29.57x = 44.33 × 12.43
  4. Step 4: Simplify right side
    29.57x = 551.02
  5. Step 5: Solve for x
    x = 551.02/29.57
  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.