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Finding the Third Proportional to 18,898 and 41,388

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Solution

The third proportional to 18,898 and 41,388 is: 90,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898 : 41,388 = 41,388 : x
  2. Step 2: Convert to fraction form
    18,898/41,388 = 41,388/x
  3. Step 3: Cross multiply
    18,898x = 41,388 × 41,388
  4. Step 4: Simplify right side
    18,898x = 1,712,966,544
  5. Step 5: Solve for x
    x = 1,712,966,544/18,898
  6. Step 6: Final answer
    x = 90,642.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.