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Finding the Third Proportional to 3,478 and 6,610

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Solution

The third proportional to 3,478 and 6,610 is: 12,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478 : 6,610 = 6,610 : x
  2. Step 2: Convert to fraction form
    3,478/6,610 = 6,610/x
  3. Step 3: Cross multiply
    3,478x = 6,610 × 6,610
  4. Step 4: Simplify right side
    3,478x = 43,692,100
  5. Step 5: Solve for x
    x = 43,692,100/3,478
  6. Step 6: Final answer
    x = 12,562.42

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.