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Finding the Third Proportional to 3,331.13 and 7,181.16

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Solution

The third proportional to 3,331.13 and 7,181.16 is: 15,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.13 : 7,181.16 = 7,181.16 : x
  2. Step 2: Convert to fraction form
    3,331.13/7,181.16 = 7,181.16/x
  3. Step 3: Cross multiply
    3,331.13x = 7,181.16 × 7,181.16
  4. Step 4: Simplify right side
    3,331.13x = 51,569,005.09
  5. Step 5: Solve for x
    x = 51,569,005.09/3,331.13
  6. Step 6: Final answer
    x = 15,480.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.