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Finding the Third Proportional to 7,864 and 16,819

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Solution

The third proportional to 7,864 and 16,819 is: 35,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864 : 16,819 = 16,819 : x
  2. Step 2: Convert to fraction form
    7,864/16,819 = 16,819/x
  3. Step 3: Cross multiply
    7,864x = 16,819 × 16,819
  4. Step 4: Simplify right side
    7,864x = 282,878,761
  5. Step 5: Solve for x
    x = 282,878,761/7,864
  6. Step 6: Final answer
    x = 35,971.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.