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Finding the Third Proportional to 7,968 and 11,904

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Solution

The third proportional to 7,968 and 11,904 is: 17,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968 : 11,904 = 11,904 : x
  2. Step 2: Convert to fraction form
    7,968/11,904 = 11,904/x
  3. Step 3: Cross multiply
    7,968x = 11,904 × 11,904
  4. Step 4: Simplify right side
    7,968x = 141,705,216
  5. Step 5: Solve for x
    x = 141,705,216/7,968
  6. Step 6: Final answer
    x = 17,784.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.