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Finding the Third Proportional to 18,662 and 40,076

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Solution

The third proportional to 18,662 and 40,076 is: 86,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662 : 40,076 = 40,076 : x
  2. Step 2: Convert to fraction form
    18,662/40,076 = 40,076/x
  3. Step 3: Cross multiply
    18,662x = 40,076 × 40,076
  4. Step 4: Simplify right side
    18,662x = 1,606,085,776
  5. Step 5: Solve for x
    x = 1,606,085,776/18,662
  6. Step 6: Final answer
    x = 86,061.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.