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Finding the Third Proportional to 11,939.63 and 25,640.44

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Solution

The third proportional to 11,939.63 and 25,640.44 is: 55,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.63 : 25,640.44 = 25,640.44 : x
  2. Step 2: Convert to fraction form
    11,939.63/25,640.44 = 25,640.44/x
  3. Step 3: Cross multiply
    11,939.63x = 25,640.44 × 25,640.44
  4. Step 4: Simplify right side
    11,939.63x = 657,432,035.19
  5. Step 5: Solve for x
    x = 657,432,035.19/11,939.63
  6. Step 6: Final answer
    x = 55,063.04

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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.