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Finding the Third Proportional to 13,992 and 18,148

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Solution

The third proportional to 13,992 and 18,148 is: 23,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992 : 18,148 = 18,148 : x
  2. Step 2: Convert to fraction form
    13,992/18,148 = 18,148/x
  3. Step 3: Cross multiply
    13,992x = 18,148 × 18,148
  4. Step 4: Simplify right side
    13,992x = 329,349,904
  5. Step 5: Solve for x
    x = 329,349,904/13,992
  6. Step 6: Final answer
    x = 23,538.44

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.