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Finding the Third Proportional to 8,697.25 and 18,947

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Solution

The third proportional to 8,697.25 and 18,947 is: 41,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.25 : 18,947 = 18,947 : x
  2. Step 2: Convert to fraction form
    8,697.25/18,947 = 18,947/x
  3. Step 3: Cross multiply
    8,697.25x = 18,947 × 18,947
  4. Step 4: Simplify right side
    8,697.25x = 358,988,809
  5. Step 5: Solve for x
    x = 358,988,809/8,697.25
  6. Step 6: Final answer
    x = 41,276.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.