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Finding the Third Proportional to 20,517 and 45,045

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Solution

The third proportional to 20,517 and 45,045 is: 98,896.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517 : 45,045 = 45,045 : x
  2. Step 2: Convert to fraction form
    20,517/45,045 = 45,045/x
  3. Step 3: Cross multiply
    20,517x = 45,045 × 45,045
  4. Step 4: Simplify right side
    20,517x = 2,029,052,025
  5. Step 5: Solve for x
    x = 2,029,052,025/20,517
  6. Step 6: Final answer
    x = 98,896.14

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.