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Finding the Third Proportional to 1.96 and 4.55

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Solution

The third proportional to 1.96 and 4.55 is: 10.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.96 : 4.55 = 4.55 : x
  2. Step 2: Convert to fraction form
    1.96/4.55 = 4.55/x
  3. Step 3: Cross multiply
    1.96x = 4.55 × 4.55
  4. Step 4: Simplify right side
    1.96x = 20.70
  5. Step 5: Solve for x
    x = 20.70/1.96
  6. Step 6: Final answer
    x = 10.55

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.