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Finding the Third Proportional to 11,712 and 16,168

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Solution

The third proportional to 11,712 and 16,168 is: 22,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712 : 16,168 = 16,168 : x
  2. Step 2: Convert to fraction form
    11,712/16,168 = 16,168/x
  3. Step 3: Cross multiply
    11,712x = 16,168 × 16,168
  4. Step 4: Simplify right side
    11,712x = 261,404,224
  5. Step 5: Solve for x
    x = 261,404,224/11,712
  6. Step 6: Final answer
    x = 22,319.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.