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Finding the Third Proportional to 13,220.72 and 28,362.66

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Solution

The third proportional to 13,220.72 and 28,362.66 is: 60,846.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.72 : 28,362.66 = 28,362.66 : x
  2. Step 2: Convert to fraction form
    13,220.72/28,362.66 = 28,362.66/x
  3. Step 3: Cross multiply
    13,220.72x = 28,362.66 × 28,362.66
  4. Step 4: Simplify right side
    13,220.72x = 804,440,269.56
  5. Step 5: Solve for x
    x = 804,440,269.56/13,220.72
  6. Step 6: Final answer
    x = 60,846.94

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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.