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Finding the Third Proportional to 7,201 and 10,947

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Solution

The third proportional to 7,201 and 10,947 is: 16,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201 : 10,947 = 10,947 : x
  2. Step 2: Convert to fraction form
    7,201/10,947 = 10,947/x
  3. Step 3: Cross multiply
    7,201x = 10,947 × 10,947
  4. Step 4: Simplify right side
    7,201x = 119,836,809
  5. Step 5: Solve for x
    x = 119,836,809/7,201
  6. Step 6: Final answer
    x = 16,641.69

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.