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Finding the Fourth Proportional to 29.47, 44.22 and 13.44

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Solution

The fourth proportional to 29.47, 44.22 and 13.44 is: 20.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.47 : 44.22 = 13.44 : x
  2. Step 2: Convert to fraction form
    29.47/44.22 = 13.44/x
  3. Step 3: Cross multiply
    29.47x = 44.22 × 13.44
  4. Step 4: Simplify right side
    29.47x = 594.32
  5. Step 5: Solve for x
    x = 594.32/29.47
  6. Step 6: Final answer
    x = 20.17

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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.