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Finding the Third Proportional to 28,198.13 and 61,215.75

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Solution

The third proportional to 28,198.13 and 61,215.75 is: 132,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.13 : 61,215.75 = 61,215.75 : x
  2. Step 2: Convert to fraction form
    28,198.13/61,215.75 = 61,215.75/x
  3. Step 3: Cross multiply
    28,198.13x = 61,215.75 × 61,215.75
  4. Step 4: Simplify right side
    28,198.13x = 3,747,368,048.06
  5. Step 5: Solve for x
    x = 3,747,368,048.06/28,198.13
  6. Step 6: Final answer
    x = 132,894.23

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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.