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Finding the Third Proportional to 1,994 and 2,345

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Solution

The third proportional to 1,994 and 2,345 is: 2,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994 : 2,345 = 2,345 : x
  2. Step 2: Convert to fraction form
    1,994/2,345 = 2,345/x
  3. Step 3: Cross multiply
    1,994x = 2,345 × 2,345
  4. Step 4: Simplify right side
    1,994x = 5,499,025
  5. Step 5: Solve for x
    x = 5,499,025/1,994
  6. Step 6: Final answer
    x = 2,757.79

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.