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Finding the Third Proportional to 694.88 and 1,486.88

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Solution

The third proportional to 694.88 and 1,486.88 is: 3,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.88 : 1,486.88 = 1,486.88 : x
  2. Step 2: Convert to fraction form
    694.88/1,486.88 = 1,486.88/x
  3. Step 3: Cross multiply
    694.88x = 1,486.88 × 1,486.88
  4. Step 4: Simplify right side
    694.88x = 2,210,797.27
  5. Step 5: Solve for x
    x = 2,210,797.27/694.88
  6. Step 6: Final answer
    x = 3,181.58

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.