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Finding the Fourth Proportional to 29.74, 44.38 and 29

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Solution

The fourth proportional to 29.74, 44.38 and 29 is: 43.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.74 : 44.38 = 29 : x
  2. Step 2: Convert to fraction form
    29.74/44.38 = 29/x
  3. Step 3: Cross multiply
    29.74x = 44.38 × 29
  4. Step 4: Simplify right side
    29.74x = 1,287.02
  5. Step 5: Solve for x
    x = 1,287.02/29.74
  6. Step 6: Final answer
    x = 43.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.