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Finding the Third Proportional to 7,699 and 16,856

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Solution

The third proportional to 7,699 and 16,856 is: 36,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699 : 16,856 = 16,856 : x
  2. Step 2: Convert to fraction form
    7,699/16,856 = 16,856/x
  3. Step 3: Cross multiply
    7,699x = 16,856 × 16,856
  4. Step 4: Simplify right side
    7,699x = 284,124,736
  5. Step 5: Solve for x
    x = 284,124,736/7,699
  6. Step 6: Final answer
    x = 36,904.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.