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Finding the Third Proportional to 3,406 and 7,176.25

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Solution

The third proportional to 3,406 and 7,176.25 is: 15,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406 : 7,176.25 = 7,176.25 : x
  2. Step 2: Convert to fraction form
    3,406/7,176.25 = 7,176.25/x
  3. Step 3: Cross multiply
    3,406x = 7,176.25 × 7,176.25
  4. Step 4: Simplify right side
    3,406x = 51,498,564.06
  5. Step 5: Solve for x
    x = 51,498,564.06/3,406
  6. Step 6: Final answer
    x = 15,119.95

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.