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Finding the Third Proportional to 3,219.75 and 6,849.56

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Solution

The third proportional to 3,219.75 and 6,849.56 is: 14,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.75 : 6,849.56 = 6,849.56 : x
  2. Step 2: Convert to fraction form
    3,219.75/6,849.56 = 6,849.56/x
  3. Step 3: Cross multiply
    3,219.75x = 6,849.56 × 6,849.56
  4. Step 4: Simplify right side
    3,219.75x = 46,916,506.44
  5. Step 5: Solve for x
    x = 46,916,506.44/3,219.75
  6. Step 6: Final answer
    x = 14,571.47

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.