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Finding the Fourth Proportional to 6.74, 9.32 and 6.44

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Solution

The fourth proportional to 6.74, 9.32 and 6.44 is: 8.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.74 : 9.32 = 6.44 : x
  2. Step 2: Convert to fraction form
    6.74/9.32 = 6.44/x
  3. Step 3: Cross multiply
    6.74x = 9.32 × 6.44
  4. Step 4: Simplify right side
    6.74x = 60.02
  5. Step 5: Solve for x
    x = 60.02/6.74
  6. Step 6: Final answer
    x = 8.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.