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Finding the Third Proportional to 694.41 and 1,510.31

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Solution

The third proportional to 694.41 and 1,510.31 is: 3,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.41 : 1,510.31 = 1,510.31 : x
  2. Step 2: Convert to fraction form
    694.41/1,510.31 = 1,510.31/x
  3. Step 3: Cross multiply
    694.41x = 1,510.31 × 1,510.31
  4. Step 4: Simplify right side
    694.41x = 2,281,043.85
  5. Step 5: Solve for x
    x = 2,281,043.85/694.41
  6. Step 6: Final answer
    x = 3,284.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.