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Finding the Third Proportional to 51,125 and 80,216

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Solution

The third proportional to 51,125 and 80,216 is: 125,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,125 : 80,216 = 80,216 : x
  2. Step 2: Convert to fraction form
    51,125/80,216 = 80,216/x
  3. Step 3: Cross multiply
    51,125x = 80,216 × 80,216
  4. Step 4: Simplify right side
    51,125x = 6,434,606,656
  5. Step 5: Solve for x
    x = 6,434,606,656/51,125
  6. Step 6: Final answer
    x = 125,860.28

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.