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Finding the Third Proportional to 11,679 and 14,190

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Solution

The third proportional to 11,679 and 14,190 is: 17,240.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679 : 14,190 = 14,190 : x
  2. Step 2: Convert to fraction form
    11,679/14,190 = 14,190/x
  3. Step 3: Cross multiply
    11,679x = 14,190 × 14,190
  4. Step 4: Simplify right side
    11,679x = 201,356,100
  5. Step 5: Solve for x
    x = 201,356,100/11,679
  6. Step 6: Final answer
    x = 17,240.87

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.