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Finding the Third Proportional to 54,789 and 74,244

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Solution

The third proportional to 54,789 and 74,244 is: 100,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,789 : 74,244 = 74,244 : x
  2. Step 2: Convert to fraction form
    54,789/74,244 = 74,244/x
  3. Step 3: Cross multiply
    54,789x = 74,244 × 74,244
  4. Step 4: Simplify right side
    54,789x = 5,512,171,536
  5. Step 5: Solve for x
    x = 5,512,171,536/54,789
  6. Step 6: Final answer
    x = 100,607.27

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.