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Finding the Third Proportional to 8,992 and 19,756

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Solution

The third proportional to 8,992 and 19,756 is: 43,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992 : 19,756 = 19,756 : x
  2. Step 2: Convert to fraction form
    8,992/19,756 = 19,756/x
  3. Step 3: Cross multiply
    8,992x = 19,756 × 19,756
  4. Step 4: Simplify right side
    8,992x = 390,299,536
  5. Step 5: Solve for x
    x = 390,299,536/8,992
  6. Step 6: Final answer
    x = 43,405.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.