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Finding the Third Proportional to 21,243 and 44,916

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Solution

The third proportional to 21,243 and 44,916 is: 94,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243 : 44,916 = 44,916 : x
  2. Step 2: Convert to fraction form
    21,243/44,916 = 44,916/x
  3. Step 3: Cross multiply
    21,243x = 44,916 × 44,916
  4. Step 4: Simplify right side
    21,243x = 2,017,447,056
  5. Step 5: Solve for x
    x = 2,017,447,056/21,243
  6. Step 6: Final answer
    x = 94,969.97

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.