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Finding the Third Proportional to 39,928 and 61,104

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Solution

The third proportional to 39,928 and 61,104 is: 93,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928 : 61,104 = 61,104 : x
  2. Step 2: Convert to fraction form
    39,928/61,104 = 61,104/x
  3. Step 3: Cross multiply
    39,928x = 61,104 × 61,104
  4. Step 4: Simplify right side
    39,928x = 3,733,698,816
  5. Step 5: Solve for x
    x = 3,733,698,816/39,928
  6. Step 6: Final answer
    x = 93,510.79

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.