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Finding the Third Proportional to 39,957 and 54,104

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Solution

The third proportional to 39,957 and 54,104 is: 73,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957 : 54,104 = 54,104 : x
  2. Step 2: Convert to fraction form
    39,957/54,104 = 54,104/x
  3. Step 3: Cross multiply
    39,957x = 54,104 × 54,104
  4. Step 4: Simplify right side
    39,957x = 2,927,242,816
  5. Step 5: Solve for x
    x = 2,927,242,816/39,957
  6. Step 6: Final answer
    x = 73,259.82

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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.