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Finding the Third Proportional to 18,822 and 40,146

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Solution

The third proportional to 18,822 and 40,146 is: 85,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822 : 40,146 = 40,146 : x
  2. Step 2: Convert to fraction form
    18,822/40,146 = 40,146/x
  3. Step 3: Cross multiply
    18,822x = 40,146 × 40,146
  4. Step 4: Simplify right side
    18,822x = 1,611,701,316
  5. Step 5: Solve for x
    x = 1,611,701,316/18,822
  6. Step 6: Final answer
    x = 85,628.59

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.