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Finding the Third Proportional to 39,924.56 and 55,512

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Solution

The third proportional to 39,924.56 and 55,512 is: 77,185.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,924.56 : 55,512 = 55,512 : x
  2. Step 2: Convert to fraction form
    39,924.56/55,512 = 55,512/x
  3. Step 3: Cross multiply
    39,924.56x = 55,512 × 55,512
  4. Step 4: Simplify right side
    39,924.56x = 3,081,582,144
  5. Step 5: Solve for x
    x = 3,081,582,144/39,924.56
  6. Step 6: Final answer
    x = 77,185.12

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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.