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Finding the Third Proportional to 707.91 and 1,425.94

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Solution

The third proportional to 707.91 and 1,425.94 is: 2,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.91 : 1,425.94 = 1,425.94 : x
  2. Step 2: Convert to fraction form
    707.91/1,425.94 = 1,425.94/x
  3. Step 3: Cross multiply
    707.91x = 1,425.94 × 1,425.94
  4. Step 4: Simplify right side
    707.91x = 2,033,297.75
  5. Step 5: Solve for x
    x = 2,033,297.75/707.91
  6. Step 6: Final answer
    x = 2,872.27

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.