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Finding the Fourth Proportional to 29.56, 44.31 and 19.43

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Solution

The fourth proportional to 29.56, 44.31 and 19.43 is: 29.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.56 : 44.31 = 19.43 : x
  2. Step 2: Convert to fraction form
    29.56/44.31 = 19.43/x
  3. Step 3: Cross multiply
    29.56x = 44.31 × 19.43
  4. Step 4: Simplify right side
    29.56x = 860.94
  5. Step 5: Solve for x
    x = 860.94/29.56
  6. Step 6: Final answer
    x = 29.13

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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.