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Finding the Third Proportional to 34,939 and 49,389

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Solution

The third proportional to 34,939 and 49,389 is: 69,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,939 : 49,389 = 49,389 : x
  2. Step 2: Convert to fraction form
    34,939/49,389 = 49,389/x
  3. Step 3: Cross multiply
    34,939x = 49,389 × 49,389
  4. Step 4: Simplify right side
    34,939x = 2,439,273,321
  5. Step 5: Solve for x
    x = 2,439,273,321/34,939
  6. Step 6: Final answer
    x = 69,815.20

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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.