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Finding the Third Proportional to 53,262 and 82,812

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Solution

The third proportional to 53,262 and 82,812 is: 128,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,262 : 82,812 = 82,812 : x
  2. Step 2: Convert to fraction form
    53,262/82,812 = 82,812/x
  3. Step 3: Cross multiply
    53,262x = 82,812 × 82,812
  4. Step 4: Simplify right side
    53,262x = 6,857,827,344
  5. Step 5: Solve for x
    x = 6,857,827,344/53,262
  6. Step 6: Final answer
    x = 128,756.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.