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Finding the Third Proportional to 8,197 and 12,617

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Solution

The third proportional to 8,197 and 12,617 is: 19,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,197 : 12,617 = 12,617 : x
  2. Step 2: Convert to fraction form
    8,197/12,617 = 12,617/x
  3. Step 3: Cross multiply
    8,197x = 12,617 × 12,617
  4. Step 4: Simplify right side
    8,197x = 159,188,689
  5. Step 5: Solve for x
    x = 159,188,689/8,197
  6. Step 6: Final answer
    x = 19,420.36

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.