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Finding the Third Proportional to 6,388 and 11,732

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Solution

The third proportional to 6,388 and 11,732 is: 21,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388 : 11,732 = 11,732 : x
  2. Step 2: Convert to fraction form
    6,388/11,732 = 11,732/x
  3. Step 3: Cross multiply
    6,388x = 11,732 × 11,732
  4. Step 4: Simplify right side
    6,388x = 137,639,824
  5. Step 5: Solve for x
    x = 137,639,824/6,388
  6. Step 6: Final answer
    x = 21,546.62

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.