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Finding the Fourth Proportional to 9.83, 14.75 and 6.44

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Solution

The fourth proportional to 9.83, 14.75 and 6.44 is: 9.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.83 : 14.75 = 6.44 : x
  2. Step 2: Convert to fraction form
    9.83/14.75 = 6.44/x
  3. Step 3: Cross multiply
    9.83x = 14.75 × 6.44
  4. Step 4: Simplify right side
    9.83x = 94.93
  5. Step 5: Solve for x
    x = 94.93/9.83
  6. Step 6: Final answer
    x = 9.66

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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.