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Finding the Third Proportional to 6,672 and 11,940

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Solution

The third proportional to 6,672 and 11,940 is: 21,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672 : 11,940 = 11,940 : x
  2. Step 2: Convert to fraction form
    6,672/11,940 = 11,940/x
  3. Step 3: Cross multiply
    6,672x = 11,940 × 11,940
  4. Step 4: Simplify right side
    6,672x = 142,563,600
  5. Step 5: Solve for x
    x = 142,563,600/6,672
  6. Step 6: Final answer
    x = 21,367.45

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.