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Finding the Third Proportional to 7,084 and 12,608

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Solution

The third proportional to 7,084 and 12,608 is: 22,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084 : 12,608 = 12,608 : x
  2. Step 2: Convert to fraction form
    7,084/12,608 = 12,608/x
  3. Step 3: Cross multiply
    7,084x = 12,608 × 12,608
  4. Step 4: Simplify right side
    7,084x = 158,961,664
  5. Step 5: Solve for x
    x = 158,961,664/7,084
  6. Step 6: Final answer
    x = 22,439.53

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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.