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Finding the Third Proportional to 29,112 and 69,324

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Solution

The third proportional to 29,112 and 69,324 is: 165,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112 : 69,324 = 69,324 : x
  2. Step 2: Convert to fraction form
    29,112/69,324 = 69,324/x
  3. Step 3: Cross multiply
    29,112x = 69,324 × 69,324
  4. Step 4: Simplify right side
    29,112x = 4,805,816,976
  5. Step 5: Solve for x
    x = 4,805,816,976/29,112
  6. Step 6: Final answer
    x = 165,080.28

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.