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Finding the Third Proportional to 38,208.50 and 83,005

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Solution

The third proportional to 38,208.50 and 83,005 is: 180,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.50 : 83,005 = 83,005 : x
  2. Step 2: Convert to fraction form
    38,208.50/83,005 = 83,005/x
  3. Step 3: Cross multiply
    38,208.50x = 83,005 × 83,005
  4. Step 4: Simplify right side
    38,208.50x = 6,889,830,025
  5. Step 5: Solve for x
    x = 6,889,830,025/38,208.50
  6. Step 6: Final answer
    x = 180,321.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.