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Finding the Third Proportional to 521.25 and 795.75

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Solution

The third proportional to 521.25 and 795.75 is: 1,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.25 : 795.75 = 795.75 : x
  2. Step 2: Convert to fraction form
    521.25/795.75 = 795.75/x
  3. Step 3: Cross multiply
    521.25x = 795.75 × 795.75
  4. Step 4: Simplify right side
    521.25x = 633,218.06
  5. Step 5: Solve for x
    x = 633,218.06/521.25
  6. Step 6: Final answer
    x = 1,214.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.