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Finding the Third Proportional to 21,368 and 49,187

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Solution

The third proportional to 21,368 and 49,187 is: 113,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368 : 49,187 = 49,187 : x
  2. Step 2: Convert to fraction form
    21,368/49,187 = 49,187/x
  3. Step 3: Cross multiply
    21,368x = 49,187 × 49,187
  4. Step 4: Simplify right side
    21,368x = 2,419,360,969
  5. Step 5: Solve for x
    x = 2,419,360,969/21,368
  6. Step 6: Final answer
    x = 113,223.56

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.