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Finding the Third Proportional to 15,549 and 33,555

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Solution

The third proportional to 15,549 and 33,555 is: 72,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549 : 33,555 = 33,555 : x
  2. Step 2: Convert to fraction form
    15,549/33,555 = 33,555/x
  3. Step 3: Cross multiply
    15,549x = 33,555 × 33,555
  4. Step 4: Simplify right side
    15,549x = 1,125,938,025
  5. Step 5: Solve for x
    x = 1,125,938,025/15,549
  6. Step 6: Final answer
    x = 72,412.25

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.