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Finding the Third Proportional to 7,044 and 12,387

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Solution

The third proportional to 7,044 and 12,387 is: 21,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044 : 12,387 = 12,387 : x
  2. Step 2: Convert to fraction form
    7,044/12,387 = 12,387/x
  3. Step 3: Cross multiply
    7,044x = 12,387 × 12,387
  4. Step 4: Simplify right side
    7,044x = 153,437,769
  5. Step 5: Solve for x
    x = 153,437,769/7,044
  6. Step 6: Final answer
    x = 21,782.76

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.