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Finding the Fourth Proportional to 7.02, 9.67 and 4.96

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Solution

The fourth proportional to 7.02, 9.67 and 4.96 is: 6.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.02 : 9.67 = 4.96 : x
  2. Step 2: Convert to fraction form
    7.02/9.67 = 4.96/x
  3. Step 3: Cross multiply
    7.02x = 9.67 × 4.96
  4. Step 4: Simplify right side
    7.02x = 47.96
  5. Step 5: Solve for x
    x = 47.96/7.02
  6. Step 6: Final answer
    x = 6.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.