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Finding the Third Proportional to 6,192 and 12,640

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Solution

The third proportional to 6,192 and 12,640 is: 25,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,192 : 12,640 = 12,640 : x
  2. Step 2: Convert to fraction form
    6,192/12,640 = 12,640/x
  3. Step 3: Cross multiply
    6,192x = 12,640 × 12,640
  4. Step 4: Simplify right side
    6,192x = 159,769,600
  5. Step 5: Solve for x
    x = 159,769,600/6,192
  6. Step 6: Final answer
    x = 25,802.58

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.