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Finding the Third Proportional to 1,699 and 3,116

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Solution

The third proportional to 1,699 and 3,116 is: 5,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699 : 3,116 = 3,116 : x
  2. Step 2: Convert to fraction form
    1,699/3,116 = 3,116/x
  3. Step 3: Cross multiply
    1,699x = 3,116 × 3,116
  4. Step 4: Simplify right side
    1,699x = 9,709,456
  5. Step 5: Solve for x
    x = 9,709,456/1,699
  6. Step 6: Final answer
    x = 5,714.81

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.