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Finding the Third Proportional to 38,206.50 and 81,333

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Solution

The third proportional to 38,206.50 and 81,333 is: 173,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,206.50 : 81,333 = 81,333 : x
  2. Step 2: Convert to fraction form
    38,206.50/81,333 = 81,333/x
  3. Step 3: Cross multiply
    38,206.50x = 81,333 × 81,333
  4. Step 4: Simplify right side
    38,206.50x = 6,615,056,889
  5. Step 5: Solve for x
    x = 6,615,056,889/38,206.50
  6. Step 6: Final answer
    x = 173,139.57

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.