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Finding the Third Proportional to 39,912.75 and 55,495.13

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Solution

The third proportional to 39,912.75 and 55,495.13 is: 77,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.75 : 55,495.13 = 55,495.13 : x
  2. Step 2: Convert to fraction form
    39,912.75/55,495.13 = 55,495.13/x
  3. Step 3: Cross multiply
    39,912.75x = 55,495.13 × 55,495.13
  4. Step 4: Simplify right side
    39,912.75x = 3,079,708,898.77
  5. Step 5: Solve for x
    x = 3,079,708,898.77/39,912.75
  6. Step 6: Final answer
    x = 77,161.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.