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Finding the Third Proportional to 38,966.25 and 85,221.75

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Solution

The third proportional to 38,966.25 and 85,221.75 is: 186,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,966.25 : 85,221.75 = 85,221.75 : x
  2. Step 2: Convert to fraction form
    38,966.25/85,221.75 = 85,221.75/x
  3. Step 3: Cross multiply
    38,966.25x = 85,221.75 × 85,221.75
  4. Step 4: Simplify right side
    38,966.25x = 7,262,746,673.06
  5. Step 5: Solve for x
    x = 7,262,746,673.06/38,966.25
  6. Step 6: Final answer
    x = 186,385.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.