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Finding the Fourth Proportional to 7.96, 10.92 and 7.36

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Solution

The fourth proportional to 7.96, 10.92 and 7.36 is: 10.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.96 : 10.92 = 7.36 : x
  2. Step 2: Convert to fraction form
    7.96/10.92 = 7.36/x
  3. Step 3: Cross multiply
    7.96x = 10.92 × 7.36
  4. Step 4: Simplify right side
    7.96x = 80.37
  5. Step 5: Solve for x
    x = 80.37/7.96
  6. Step 6: Final answer
    x = 10.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.