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Finding the Third Proportional to 6,999 and 14,790

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Solution

The third proportional to 6,999 and 14,790 is: 31,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999 : 14,790 = 14,790 : x
  2. Step 2: Convert to fraction form
    6,999/14,790 = 14,790/x
  3. Step 3: Cross multiply
    6,999x = 14,790 × 14,790
  4. Step 4: Simplify right side
    6,999x = 218,744,100
  5. Step 5: Solve for x
    x = 218,744,100/6,999
  6. Step 6: Final answer
    x = 31,253.62

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.