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Finding the Third Proportional to 14,112 and 18,216

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Solution

The third proportional to 14,112 and 18,216 is: 23,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112 : 18,216 = 18,216 : x
  2. Step 2: Convert to fraction form
    14,112/18,216 = 18,216/x
  3. Step 3: Cross multiply
    14,112x = 18,216 × 18,216
  4. Step 4: Simplify right side
    14,112x = 331,822,656
  5. Step 5: Solve for x
    x = 331,822,656/14,112
  6. Step 6: Final answer
    x = 23,513.51

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.