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Finding the Third Proportional to 27,345 and 39,103

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Solution

The third proportional to 27,345 and 39,103 is: 55,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,345 : 39,103 = 39,103 : x
  2. Step 2: Convert to fraction form
    27,345/39,103 = 39,103/x
  3. Step 3: Cross multiply
    27,345x = 39,103 × 39,103
  4. Step 4: Simplify right side
    27,345x = 1,529,044,609
  5. Step 5: Solve for x
    x = 1,529,044,609/27,345
  6. Step 6: Final answer
    x = 55,916.79

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.