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Finding the Third Proportional to 2,116.13 and 2,809.13

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Solution

The third proportional to 2,116.13 and 2,809.13 is: 3,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.13 : 2,809.13 = 2,809.13 : x
  2. Step 2: Convert to fraction form
    2,116.13/2,809.13 = 2,809.13/x
  3. Step 3: Cross multiply
    2,116.13x = 2,809.13 × 2,809.13
  4. Step 4: Simplify right side
    2,116.13x = 7,891,183.27
  5. Step 5: Solve for x
    x = 7,891,183.27/2,116.13
  6. Step 6: Final answer
    x = 3,729.07

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.