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Finding the Third Proportional to 7,446.75 and 11,578.50

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Solution

The third proportional to 7,446.75 and 11,578.50 is: 18,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,446.75 : 11,578.50 = 11,578.50 : x
  2. Step 2: Convert to fraction form
    7,446.75/11,578.50 = 11,578.50/x
  3. Step 3: Cross multiply
    7,446.75x = 11,578.50 × 11,578.50
  4. Step 4: Simplify right side
    7,446.75x = 134,061,662.25
  5. Step 5: Solve for x
    x = 134,061,662.25/7,446.75
  6. Step 6: Final answer
    x = 18,002.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.