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Finding the Third Proportional to 518 and 833

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Solution

The third proportional to 518 and 833 is: 1,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    518 : 833 = 833 : x
  2. Step 2: Convert to fraction form
    518/833 = 833/x
  3. Step 3: Cross multiply
    518x = 833 × 833
  4. Step 4: Simplify right side
    518x = 693,889
  5. Step 5: Solve for x
    x = 693,889/518
  6. Step 6: Final answer
    x = 1,339.55

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.