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Finding the Third Proportional to 3,561.47 and 6,629.34

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Solution

The third proportional to 3,561.47 and 6,629.34 is: 12,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.47 : 6,629.34 = 6,629.34 : x
  2. Step 2: Convert to fraction form
    3,561.47/6,629.34 = 6,629.34/x
  3. Step 3: Cross multiply
    3,561.47x = 6,629.34 × 6,629.34
  4. Step 4: Simplify right side
    3,561.47x = 43,948,198.56
  5. Step 5: Solve for x
    x = 43,948,198.56/3,561.47
  6. Step 6: Final answer
    x = 12,339.91

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.