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Finding the Third Proportional to 13,392 and 19,672

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Solution

The third proportional to 13,392 and 19,672 is: 28,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392 : 19,672 = 19,672 : x
  2. Step 2: Convert to fraction form
    13,392/19,672 = 19,672/x
  3. Step 3: Cross multiply
    13,392x = 19,672 × 19,672
  4. Step 4: Simplify right side
    13,392x = 386,987,584
  5. Step 5: Solve for x
    x = 386,987,584/13,392
  6. Step 6: Final answer
    x = 28,896.92

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.