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Finding the Fourth Proportional to 7.62, 11.37 and 6.95

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Solution

The fourth proportional to 7.62, 11.37 and 6.95 is: 10.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.62 : 11.37 = 6.95 : x
  2. Step 2: Convert to fraction form
    7.62/11.37 = 6.95/x
  3. Step 3: Cross multiply
    7.62x = 11.37 × 6.95
  4. Step 4: Simplify right side
    7.62x = 78.96
  5. Step 5: Solve for x
    x = 78.96/7.62
  6. Step 6: Final answer
    x = 10.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.