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Finding the Third Proportional to 50,173 and 66,921

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Solution

The third proportional to 50,173 and 66,921 is: 89,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,173 : 66,921 = 66,921 : x
  2. Step 2: Convert to fraction form
    50,173/66,921 = 66,921/x
  3. Step 3: Cross multiply
    50,173x = 66,921 × 66,921
  4. Step 4: Simplify right side
    50,173x = 4,478,420,241
  5. Step 5: Solve for x
    x = 4,478,420,241/50,173
  6. Step 6: Final answer
    x = 89,259.57

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.