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Finding the Fourth Proportional to 9.44, 12.84 and 9.41

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Solution

The fourth proportional to 9.44, 12.84 and 9.41 is: 12.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.44 : 12.84 = 9.41 : x
  2. Step 2: Convert to fraction form
    9.44/12.84 = 9.41/x
  3. Step 3: Cross multiply
    9.44x = 12.84 × 9.41
  4. Step 4: Simplify right side
    9.44x = 120.76
  5. Step 5: Solve for x
    x = 120.76/9.44
  6. Step 6: Final answer
    x = 12.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.