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Finding the Third Proportional to 7,676 and 12,028

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Solution

The third proportional to 7,676 and 12,028 is: 18,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676 : 12,028 = 12,028 : x
  2. Step 2: Convert to fraction form
    7,676/12,028 = 12,028/x
  3. Step 3: Cross multiply
    7,676x = 12,028 × 12,028
  4. Step 4: Simplify right side
    7,676x = 144,672,784
  5. Step 5: Solve for x
    x = 144,672,784/7,676
  6. Step 6: Final answer
    x = 18,847.42

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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.