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Finding the Third Proportional to 18,772.50 and 33,371

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Solution

The third proportional to 18,772.50 and 33,371 is: 59,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.50 : 33,371 = 33,371 : x
  2. Step 2: Convert to fraction form
    18,772.50/33,371 = 33,371/x
  3. Step 3: Cross multiply
    18,772.50x = 33,371 × 33,371
  4. Step 4: Simplify right side
    18,772.50x = 1,113,623,641
  5. Step 5: Solve for x
    x = 1,113,623,641/18,772.50
  6. Step 6: Final answer
    x = 59,322.07

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.