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Finding the Third Proportional to 7,718 and 16,888

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Solution

The third proportional to 7,718 and 16,888 is: 36,953.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718 : 16,888 = 16,888 : x
  2. Step 2: Convert to fraction form
    7,718/16,888 = 16,888/x
  3. Step 3: Cross multiply
    7,718x = 16,888 × 16,888
  4. Step 4: Simplify right side
    7,718x = 285,204,544
  5. Step 5: Solve for x
    x = 285,204,544/7,718
  6. Step 6: Final answer
    x = 36,953.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.