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Finding the Third Proportional to 10,289 and 22,138

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Solution

The third proportional to 10,289 and 22,138 is: 47,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289 : 22,138 = 22,138 : x
  2. Step 2: Convert to fraction form
    10,289/22,138 = 22,138/x
  3. Step 3: Cross multiply
    10,289x = 22,138 × 22,138
  4. Step 4: Simplify right side
    10,289x = 490,091,044
  5. Step 5: Solve for x
    x = 490,091,044/10,289
  6. Step 6: Final answer
    x = 47,632.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.