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Finding the Third Proportional to 21,318 and 44,845

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Solution

The third proportional to 21,318 and 44,845 is: 94,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318 : 44,845 = 44,845 : x
  2. Step 2: Convert to fraction form
    21,318/44,845 = 44,845/x
  3. Step 3: Cross multiply
    21,318x = 44,845 × 44,845
  4. Step 4: Simplify right side
    21,318x = 2,011,074,025
  5. Step 5: Solve for x
    x = 2,011,074,025/21,318
  6. Step 6: Final answer
    x = 94,336.90

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.