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Finding the Fourth Proportional to 6.44, 9.66 and 3.73

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Solution

The fourth proportional to 6.44, 9.66 and 3.73 is: 5.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.44 : 9.66 = 3.73 : x
  2. Step 2: Convert to fraction form
    6.44/9.66 = 3.73/x
  3. Step 3: Cross multiply
    6.44x = 9.66 × 3.73
  4. Step 4: Simplify right side
    6.44x = 36.03
  5. Step 5: Solve for x
    x = 36.03/6.44
  6. Step 6: Final answer
    x = 5.60

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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.