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Finding the Third Proportional to 865.69 and 1,927.97

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Solution

The third proportional to 865.69 and 1,927.97 is: 4,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    865.69 : 1,927.97 = 1,927.97 : x
  2. Step 2: Convert to fraction form
    865.69/1,927.97 = 1,927.97/x
  3. Step 3: Cross multiply
    865.69x = 1,927.97 × 1,927.97
  4. Step 4: Simplify right side
    865.69x = 3,717,063.50
  5. Step 5: Solve for x
    x = 3,717,063.50/865.69
  6. Step 6: Final answer
    x = 4,293.77

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.