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Finding the Third Proportional to 18,294 and 40,396

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Solution

The third proportional to 18,294 and 40,396 is: 89,200.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294 : 40,396 = 40,396 : x
  2. Step 2: Convert to fraction form
    18,294/40,396 = 40,396/x
  3. Step 3: Cross multiply
    18,294x = 40,396 × 40,396
  4. Step 4: Simplify right side
    18,294x = 1,631,836,816
  5. Step 5: Solve for x
    x = 1,631,836,816/18,294
  6. Step 6: Final answer
    x = 89,200.66

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.