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Finding the Third Proportional to 54,726 and 81,968

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Solution

The third proportional to 54,726 and 81,968 is: 122,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,726 : 81,968 = 81,968 : x
  2. Step 2: Convert to fraction form
    54,726/81,968 = 81,968/x
  3. Step 3: Cross multiply
    54,726x = 81,968 × 81,968
  4. Step 4: Simplify right side
    54,726x = 6,718,753,024
  5. Step 5: Solve for x
    x = 6,718,753,024/54,726
  6. Step 6: Final answer
    x = 122,770.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.