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Finding the Third Proportional to 38,280 and 84,104

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Solution

The third proportional to 38,280 and 84,104 is: 184,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280 : 84,104 = 84,104 : x
  2. Step 2: Convert to fraction form
    38,280/84,104 = 84,104/x
  3. Step 3: Cross multiply
    38,280x = 84,104 × 84,104
  4. Step 4: Simplify right side
    38,280x = 7,073,482,816
  5. Step 5: Solve for x
    x = 7,073,482,816/38,280
  6. Step 6: Final answer
    x = 184,782.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.