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Finding the Third Proportional to 54,668 and 74,190

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Solution

The third proportional to 54,668 and 74,190 is: 100,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,668 : 74,190 = 74,190 : x
  2. Step 2: Convert to fraction form
    54,668/74,190 = 74,190/x
  3. Step 3: Cross multiply
    54,668x = 74,190 × 74,190
  4. Step 4: Simplify right side
    54,668x = 5,504,156,100
  5. Step 5: Solve for x
    x = 5,504,156,100/54,668
  6. Step 6: Final answer
    x = 100,683.33

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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.