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Finding the Third Proportional to 17,938 and 38,348

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Solution

The third proportional to 17,938 and 38,348 is: 81,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938 : 38,348 = 38,348 : x
  2. Step 2: Convert to fraction form
    17,938/38,348 = 38,348/x
  3. Step 3: Cross multiply
    17,938x = 38,348 × 38,348
  4. Step 4: Simplify right side
    17,938x = 1,470,569,104
  5. Step 5: Solve for x
    x = 1,470,569,104/17,938
  6. Step 6: Final answer
    x = 81,980.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.