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Finding the Third Proportional to 34,940 and 49,391

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Solution

The third proportional to 34,940 and 49,391 is: 69,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,940 : 49,391 = 49,391 : x
  2. Step 2: Convert to fraction form
    34,940/49,391 = 49,391/x
  3. Step 3: Cross multiply
    34,940x = 49,391 × 49,391
  4. Step 4: Simplify right side
    34,940x = 2,439,470,881
  5. Step 5: Solve for x
    x = 2,439,470,881/34,940
  6. Step 6: Final answer
    x = 69,818.86

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.