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Finding the Third Proportional to 8,384 and 12,796

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Solution

The third proportional to 8,384 and 12,796 is: 19,529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384 : 12,796 = 12,796 : x
  2. Step 2: Convert to fraction form
    8,384/12,796 = 12,796/x
  3. Step 3: Cross multiply
    8,384x = 12,796 × 12,796
  4. Step 4: Simplify right side
    8,384x = 163,737,616
  5. Step 5: Solve for x
    x = 163,737,616/8,384
  6. Step 6: Final answer
    x = 19,529.77

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.