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Finding the Third Proportional to 15,453 and 33,660

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Solution

The third proportional to 15,453 and 33,660 is: 73,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453 : 33,660 = 33,660 : x
  2. Step 2: Convert to fraction form
    15,453/33,660 = 33,660/x
  3. Step 3: Cross multiply
    15,453x = 33,660 × 33,660
  4. Step 4: Simplify right side
    15,453x = 1,132,995,600
  5. Step 5: Solve for x
    x = 1,132,995,600/15,453
  6. Step 6: Final answer
    x = 73,318.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.