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Finding the Third Proportional to 9,385.75 and 20,220.50

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Solution

The third proportional to 9,385.75 and 20,220.50 is: 43,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.75 : 20,220.50 = 20,220.50 : x
  2. Step 2: Convert to fraction form
    9,385.75/20,220.50 = 20,220.50/x
  3. Step 3: Cross multiply
    9,385.75x = 20,220.50 × 20,220.50
  4. Step 4: Simplify right side
    9,385.75x = 408,868,620.25
  5. Step 5: Solve for x
    x = 408,868,620.25/9,385.75
  6. Step 6: Final answer
    x = 43,562.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.