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Finding the Third Proportional to 3,211,564.50 and 7,061,892.75

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Solution

The third proportional to 3,211,564.50 and 7,061,892.75 is: 15,528,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211,564.50 : 7,061,892.75 = 7,061,892.75 : x
  2. Step 2: Convert to fraction form
    3,211,564.50/7,061,892.75 = 7,061,892.75/x
  3. Step 3: Cross multiply
    3,211,564.50x = 7,061,892.75 × 7,061,892.75
  4. Step 4: Simplify right side
    3,211,564.50x = 49,870,329,212,502.56
  5. Step 5: Solve for x
    x = 49,870,329,212,502.56/3,211,564.50
  6. Step 6: Final answer
    x = 15,528,359.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.