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Finding the Third Proportional to 516 and 792.94

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Solution

The third proportional to 516 and 792.94 is: 1,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    516 : 792.94 = 792.94 : x
  2. Step 2: Convert to fraction form
    516/792.94 = 792.94/x
  3. Step 3: Cross multiply
    516x = 792.94 × 792.94
  4. Step 4: Simplify right side
    516x = 628,749.88
  5. Step 5: Solve for x
    x = 628,749.88/516
  6. Step 6: Final answer
    x = 1,218.51

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.