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Finding the Third Proportional to 17,701.50 and 38,517

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Solution

The third proportional to 17,701.50 and 38,517 is: 83,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,701.50 : 38,517 = 38,517 : x
  2. Step 2: Convert to fraction form
    17,701.50/38,517 = 38,517/x
  3. Step 3: Cross multiply
    17,701.50x = 38,517 × 38,517
  4. Step 4: Simplify right side
    17,701.50x = 1,483,559,289
  5. Step 5: Solve for x
    x = 1,483,559,289/17,701.50
  6. Step 6: Final answer
    x = 83,809.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.