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Finding the Fourth Proportional to 9.62, 13.35 and 9.44

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Solution

The fourth proportional to 9.62, 13.35 and 9.44 is: 13.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.62 : 13.35 = 9.44 : x
  2. Step 2: Convert to fraction form
    9.62/13.35 = 9.44/x
  3. Step 3: Cross multiply
    9.62x = 13.35 × 9.44
  4. Step 4: Simplify right side
    9.62x = 125.98
  5. Step 5: Solve for x
    x = 125.98/9.62
  6. Step 6: Final answer
    x = 13.10

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.