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Finding the Third Proportional to 32,940 and 51,081

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Solution

The third proportional to 32,940 and 51,081 is: 79,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,940 : 51,081 = 51,081 : x
  2. Step 2: Convert to fraction form
    32,940/51,081 = 51,081/x
  3. Step 3: Cross multiply
    32,940x = 51,081 × 51,081
  4. Step 4: Simplify right side
    32,940x = 2,609,268,561
  5. Step 5: Solve for x
    x = 2,609,268,561/32,940
  6. Step 6: Final answer
    x = 79,212.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.