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Finding the Third Proportional to 4,272 and 8,932

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Solution

The third proportional to 4,272 and 8,932 is: 18,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272 : 8,932 = 8,932 : x
  2. Step 2: Convert to fraction form
    4,272/8,932 = 8,932/x
  3. Step 3: Cross multiply
    4,272x = 8,932 × 8,932
  4. Step 4: Simplify right side
    4,272x = 79,780,624
  5. Step 5: Solve for x
    x = 79,780,624/4,272
  6. Step 6: Final answer
    x = 18,675.24

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.