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Finding the Third Proportional to 1,864.13 and 2,694.38

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Solution

The third proportional to 1,864.13 and 2,694.38 is: 3,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.13 : 2,694.38 = 2,694.38 : x
  2. Step 2: Convert to fraction form
    1,864.13/2,694.38 = 2,694.38/x
  3. Step 3: Cross multiply
    1,864.13x = 2,694.38 × 2,694.38
  4. Step 4: Simplify right side
    1,864.13x = 7,259,656.64
  5. Step 5: Solve for x
    x = 7,259,656.64/1,864.13
  6. Step 6: Final answer
    x = 3,894.40

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.