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Finding the Third Proportional to 3,129.75 and 6,833.25

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Solution

The third proportional to 3,129.75 and 6,833.25 is: 14,919.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.75 : 6,833.25 = 6,833.25 : x
  2. Step 2: Convert to fraction form
    3,129.75/6,833.25 = 6,833.25/x
  3. Step 3: Cross multiply
    3,129.75x = 6,833.25 × 6,833.25
  4. Step 4: Simplify right side
    3,129.75x = 46,693,305.56
  5. Step 5: Solve for x
    x = 46,693,305.56/3,129.75
  6. Step 6: Final answer
    x = 14,919.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.