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Finding the Third Proportional to 339.94 and 826.88

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Solution

The third proportional to 339.94 and 826.88 is: 2,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.94 : 826.88 = 826.88 : x
  2. Step 2: Convert to fraction form
    339.94/826.88 = 826.88/x
  3. Step 3: Cross multiply
    339.94x = 826.88 × 826.88
  4. Step 4: Simplify right side
    339.94x = 683,722.27
  5. Step 5: Solve for x
    x = 683,722.27/339.94
  6. Step 6: Final answer
    x = 2,011.32

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.