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Finding the Third Proportional to 49,887 and 67,305

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Solution

The third proportional to 49,887 and 67,305 is: 90,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,887 : 67,305 = 67,305 : x
  2. Step 2: Convert to fraction form
    49,887/67,305 = 67,305/x
  3. Step 3: Cross multiply
    49,887x = 67,305 × 67,305
  4. Step 4: Simplify right side
    49,887x = 4,529,963,025
  5. Step 5: Solve for x
    x = 4,529,963,025/49,887
  6. Step 6: Final answer
    x = 90,804.48

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.