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Finding the Third Proportional to 20,718 and 45,114

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Solution

The third proportional to 20,718 and 45,114 is: 98,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718 : 45,114 = 45,114 : x
  2. Step 2: Convert to fraction form
    20,718/45,114 = 45,114/x
  3. Step 3: Cross multiply
    20,718x = 45,114 × 45,114
  4. Step 4: Simplify right side
    20,718x = 2,035,272,996
  5. Step 5: Solve for x
    x = 2,035,272,996/20,718
  6. Step 6: Final answer
    x = 98,236.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.