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Finding the Third Proportional to 3.74 and 5.46

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Solution

The third proportional to 3.74 and 5.46 is: 7.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.74 : 5.46 = 5.46 : x
  2. Step 2: Convert to fraction form
    3.74/5.46 = 5.46/x
  3. Step 3: Cross multiply
    3.74x = 5.46 × 5.46
  4. Step 4: Simplify right side
    3.74x = 29.85
  5. Step 5: Solve for x
    x = 29.85/3.74
  6. Step 6: Final answer
    x = 7.99

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.