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Finding the Third Proportional to 15,400 and 33,488

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Solution

The third proportional to 15,400 and 33,488 is: 72,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400 : 33,488 = 33,488 : x
  2. Step 2: Convert to fraction form
    15,400/33,488 = 33,488/x
  3. Step 3: Cross multiply
    15,400x = 33,488 × 33,488
  4. Step 4: Simplify right side
    15,400x = 1,121,446,144
  5. Step 5: Solve for x
    x = 1,121,446,144/15,400
  6. Step 6: Final answer
    x = 72,821.18

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.