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Finding the Third Proportional to 52,720 and 82,104

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Solution

The third proportional to 52,720 and 82,104 is: 127,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,720 : 82,104 = 82,104 : x
  2. Step 2: Convert to fraction form
    52,720/82,104 = 82,104/x
  3. Step 3: Cross multiply
    52,720x = 82,104 × 82,104
  4. Step 4: Simplify right side
    52,720x = 6,741,066,816
  5. Step 5: Solve for x
    x = 6,741,066,816/52,720
  6. Step 6: Final answer
    x = 127,865.46

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.