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Finding the Third Proportional to 7,967.50 and 11,144

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Solution

The third proportional to 7,967.50 and 11,144 is: 15,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.50 : 11,144 = 11,144 : x
  2. Step 2: Convert to fraction form
    7,967.50/11,144 = 11,144/x
  3. Step 3: Cross multiply
    7,967.50x = 11,144 × 11,144
  4. Step 4: Simplify right side
    7,967.50x = 124,188,736
  5. Step 5: Solve for x
    x = 124,188,736/7,967.50
  6. Step 6: Final answer
    x = 15,586.91

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.