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Finding the Third Proportional to 3,709.13 and 7,940.25

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Solution

The third proportional to 3,709.13 and 7,940.25 is: 16,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.13 : 7,940.25 = 7,940.25 : x
  2. Step 2: Convert to fraction form
    3,709.13/7,940.25 = 7,940.25/x
  3. Step 3: Cross multiply
    3,709.13x = 7,940.25 × 7,940.25
  4. Step 4: Simplify right side
    3,709.13x = 63,047,570.06
  5. Step 5: Solve for x
    x = 63,047,570.06/3,709.13
  6. Step 6: Final answer
    x = 16,997.96

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.