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Finding the Third Proportional to 33,988 and 74,542

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Solution

The third proportional to 33,988 and 74,542 is: 163,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,988 : 74,542 = 74,542 : x
  2. Step 2: Convert to fraction form
    33,988/74,542 = 74,542/x
  3. Step 3: Cross multiply
    33,988x = 74,542 × 74,542
  4. Step 4: Simplify right side
    33,988x = 5,556,509,764
  5. Step 5: Solve for x
    x = 5,556,509,764/33,988
  6. Step 6: Final answer
    x = 163,484.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.