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Finding the Third Proportional to 7,886 and 16,858

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Solution

The third proportional to 7,886 and 16,858 is: 36,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886 : 16,858 = 16,858 : x
  2. Step 2: Convert to fraction form
    7,886/16,858 = 16,858/x
  3. Step 3: Cross multiply
    7,886x = 16,858 × 16,858
  4. Step 4: Simplify right side
    7,886x = 284,192,164
  5. Step 5: Solve for x
    x = 284,192,164/7,886
  6. Step 6: Final answer
    x = 36,037.56

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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.