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Finding the Fourth Proportional to 29.44, 44.16 and 28.36

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Solution

The fourth proportional to 29.44, 44.16 and 28.36 is: 42.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.44 : 44.16 = 28.36 : x
  2. Step 2: Convert to fraction form
    29.44/44.16 = 28.36/x
  3. Step 3: Cross multiply
    29.44x = 44.16 × 28.36
  4. Step 4: Simplify right side
    29.44x = 1,252.38
  5. Step 5: Solve for x
    x = 1,252.38/29.44
  6. Step 6: Final answer
    x = 42.54

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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.