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Finding the Third Proportional to 28,351.50 and 66,221.25

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Solution

The third proportional to 28,351.50 and 66,221.25 is: 154,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.50 : 66,221.25 = 66,221.25 : x
  2. Step 2: Convert to fraction form
    28,351.50/66,221.25 = 66,221.25/x
  3. Step 3: Cross multiply
    28,351.50x = 66,221.25 × 66,221.25
  4. Step 4: Simplify right side
    28,351.50x = 4,385,253,951.56
  5. Step 5: Solve for x
    x = 4,385,253,951.56/28,351.50
  6. Step 6: Final answer
    x = 154,674.50

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.