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Finding the Fourth Proportional to 4.99, 6.92 and 4.96

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Solution

The fourth proportional to 4.99, 6.92 and 4.96 is: 6.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.99 : 6.92 = 4.96 : x
  2. Step 2: Convert to fraction form
    4.99/6.92 = 4.96/x
  3. Step 3: Cross multiply
    4.99x = 6.92 × 4.96
  4. Step 4: Simplify right side
    4.99x = 34.32
  5. Step 5: Solve for x
    x = 34.32/4.99
  6. Step 6: Final answer
    x = 6.88

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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.