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Finding the Third Proportional to 12,176 and 18,320

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Solution

The third proportional to 12,176 and 18,320 is: 27,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176 : 18,320 = 18,320 : x
  2. Step 2: Convert to fraction form
    12,176/18,320 = 18,320/x
  3. Step 3: Cross multiply
    12,176x = 18,320 × 18,320
  4. Step 4: Simplify right side
    12,176x = 335,622,400
  5. Step 5: Solve for x
    x = 335,622,400/12,176
  6. Step 6: Final answer
    x = 27,564.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.