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Finding the Third Proportional to 7,161 and 16,738.50

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Solution

The third proportional to 7,161 and 16,738.50 is: 39,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161 : 16,738.50 = 16,738.50 : x
  2. Step 2: Convert to fraction form
    7,161/16,738.50 = 16,738.50/x
  3. Step 3: Cross multiply
    7,161x = 16,738.50 × 16,738.50
  4. Step 4: Simplify right side
    7,161x = 280,177,382.25
  5. Step 5: Solve for x
    x = 280,177,382.25/7,161
  6. Step 6: Final answer
    x = 39,125.45

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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.