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Finding the Third Proportional to 7,044 and 12,126

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Solution

The third proportional to 7,044 and 12,126 is: 20,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044 : 12,126 = 12,126 : x
  2. Step 2: Convert to fraction form
    7,044/12,126 = 12,126/x
  3. Step 3: Cross multiply
    7,044x = 12,126 × 12,126
  4. Step 4: Simplify right side
    7,044x = 147,039,876
  5. Step 5: Solve for x
    x = 147,039,876/7,044
  6. Step 6: Final answer
    x = 20,874.49

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.