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Finding the Third Proportional to 13,760 and 15,168

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Solution

The third proportional to 13,760 and 15,168 is: 16,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760 : 15,168 = 15,168 : x
  2. Step 2: Convert to fraction form
    13,760/15,168 = 15,168/x
  3. Step 3: Cross multiply
    13,760x = 15,168 × 15,168
  4. Step 4: Simplify right side
    13,760x = 230,068,224
  5. Step 5: Solve for x
    x = 230,068,224/13,760
  6. Step 6: Final answer
    x = 16,720.07

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.