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Finding the Third Proportional to 3,069.75 and 6,621.75

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Solution

The third proportional to 3,069.75 and 6,621.75 is: 14,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.75 : 6,621.75 = 6,621.75 : x
  2. Step 2: Convert to fraction form
    3,069.75/6,621.75 = 6,621.75/x
  3. Step 3: Cross multiply
    3,069.75x = 6,621.75 × 6,621.75
  4. Step 4: Simplify right side
    3,069.75x = 43,847,573.06
  5. Step 5: Solve for x
    x = 43,847,573.06/3,069.75
  6. Step 6: Final answer
    x = 14,283.76

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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.