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Finding the Third Proportional to 3,271.22 and 6,643.69

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Solution

The third proportional to 3,271.22 and 6,643.69 is: 13,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.22 : 6,643.69 = 6,643.69 : x
  2. Step 2: Convert to fraction form
    3,271.22/6,643.69 = 6,643.69/x
  3. Step 3: Cross multiply
    3,271.22x = 6,643.69 × 6,643.69
  4. Step 4: Simplify right side
    3,271.22x = 44,138,583.60
  5. Step 5: Solve for x
    x = 44,138,583.60/3,271.22
  6. Step 6: Final answer
    x = 13,493.01

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.