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Finding the Third Proportional to 8,074 and 12,672

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Solution

The third proportional to 8,074 and 12,672 is: 19,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074 : 12,672 = 12,672 : x
  2. Step 2: Convert to fraction form
    8,074/12,672 = 12,672/x
  3. Step 3: Cross multiply
    8,074x = 12,672 × 12,672
  4. Step 4: Simplify right side
    8,074x = 160,579,584
  5. Step 5: Solve for x
    x = 160,579,584/8,074
  6. Step 6: Final answer
    x = 19,888.48

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.