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Finding the Third Proportional to 33,420 and 52,881

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Solution

The third proportional to 33,420 and 52,881 is: 83,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420 : 52,881 = 52,881 : x
  2. Step 2: Convert to fraction form
    33,420/52,881 = 52,881/x
  3. Step 3: Cross multiply
    33,420x = 52,881 × 52,881
  4. Step 4: Simplify right side
    33,420x = 2,796,400,161
  5. Step 5: Solve for x
    x = 2,796,400,161/33,420
  6. Step 6: Final answer
    x = 83,674.45

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.