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Finding the Fourth Proportional to 5.11, 6.96 and 5.08

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Solution

The fourth proportional to 5.11, 6.96 and 5.08 is: 6.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.11 : 6.96 = 5.08 : x
  2. Step 2: Convert to fraction form
    5.11/6.96 = 5.08/x
  3. Step 3: Cross multiply
    5.11x = 6.96 × 5.08
  4. Step 4: Simplify right side
    5.11x = 35.36
  5. Step 5: Solve for x
    x = 35.36/5.11
  6. Step 6: Final answer
    x = 6.93

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.