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Finding the Third Proportional to 7,328 and 11,951

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Solution

The third proportional to 7,328 and 11,951 is: 19,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328 : 11,951 = 11,951 : x
  2. Step 2: Convert to fraction form
    7,328/11,951 = 11,951/x
  3. Step 3: Cross multiply
    7,328x = 11,951 × 11,951
  4. Step 4: Simplify right side
    7,328x = 142,826,401
  5. Step 5: Solve for x
    x = 142,826,401/7,328
  6. Step 6: Final answer
    x = 19,490.50

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.