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Finding the Third Proportional to 4,231 and 8,896

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Solution

The third proportional to 4,231 and 8,896 is: 18,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231 : 8,896 = 8,896 : x
  2. Step 2: Convert to fraction form
    4,231/8,896 = 8,896/x
  3. Step 3: Cross multiply
    4,231x = 8,896 × 8,896
  4. Step 4: Simplify right side
    4,231x = 79,138,816
  5. Step 5: Solve for x
    x = 79,138,816/4,231
  6. Step 6: Final answer
    x = 18,704.52

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.