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Finding the Third Proportional to 3,486.75 and 6,210.75

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Solution

The third proportional to 3,486.75 and 6,210.75 is: 11,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.75 : 6,210.75 = 6,210.75 : x
  2. Step 2: Convert to fraction form
    3,486.75/6,210.75 = 6,210.75/x
  3. Step 3: Cross multiply
    3,486.75x = 6,210.75 × 6,210.75
  4. Step 4: Simplify right side
    3,486.75x = 38,573,415.56
  5. Step 5: Solve for x
    x = 38,573,415.56/3,486.75
  6. Step 6: Final answer
    x = 11,062.86

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.