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Finding the Third Proportional to 54,972 and 74,676

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Solution

The third proportional to 54,972 and 74,676 is: 101,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,972 : 74,676 = 74,676 : x
  2. Step 2: Convert to fraction form
    54,972/74,676 = 74,676/x
  3. Step 3: Cross multiply
    54,972x = 74,676 × 74,676
  4. Step 4: Simplify right side
    54,972x = 5,576,504,976
  5. Step 5: Solve for x
    x = 5,576,504,976/54,972
  6. Step 6: Final answer
    x = 101,442.64

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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.