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Finding the Third Proportional to 8,947 and 11,768

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Solution

The third proportional to 8,947 and 11,768 is: 15,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947 : 11,768 = 11,768 : x
  2. Step 2: Convert to fraction form
    8,947/11,768 = 11,768/x
  3. Step 3: Cross multiply
    8,947x = 11,768 × 11,768
  4. Step 4: Simplify right side
    8,947x = 138,485,824
  5. Step 5: Solve for x
    x = 138,485,824/8,947
  6. Step 6: Final answer
    x = 15,478.46

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.