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Finding the Third Proportional to 3,231 and 6,977.75

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Solution

The third proportional to 3,231 and 6,977.75 is: 15,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231 : 6,977.75 = 6,977.75 : x
  2. Step 2: Convert to fraction form
    3,231/6,977.75 = 6,977.75/x
  3. Step 3: Cross multiply
    3,231x = 6,977.75 × 6,977.75
  4. Step 4: Simplify right side
    3,231x = 48,688,995.06
  5. Step 5: Solve for x
    x = 48,688,995.06/3,231
  6. Step 6: Final answer
    x = 15,069.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.