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Finding the Third Proportional to 1.92 and 4.99

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Solution

The third proportional to 1.92 and 4.99 is: 12.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.92 : 4.99 = 4.99 : x
  2. Step 2: Convert to fraction form
    1.92/4.99 = 4.99/x
  3. Step 3: Cross multiply
    1.92x = 4.99 × 4.99
  4. Step 4: Simplify right side
    1.92x = 24.92
  5. Step 5: Solve for x
    x = 24.92/1.92
  6. Step 6: Final answer
    x = 12.97

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.