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Finding the Third Proportional to 33,840 and 73,440

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Solution

The third proportional to 33,840 and 73,440 is: 159,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,840 : 73,440 = 73,440 : x
  2. Step 2: Convert to fraction form
    33,840/73,440 = 73,440/x
  3. Step 3: Cross multiply
    33,840x = 73,440 × 73,440
  4. Step 4: Simplify right side
    33,840x = 5,393,433,600
  5. Step 5: Solve for x
    x = 5,393,433,600/33,840
  6. Step 6: Final answer
    x = 159,380.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.