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Finding the Third Proportional to 4,536 and 9,991.69

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Solution

The third proportional to 4,536 and 9,991.69 is: 22,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,536 : 9,991.69 = 9,991.69 : x
  2. Step 2: Convert to fraction form
    4,536/9,991.69 = 9,991.69/x
  3. Step 3: Cross multiply
    4,536x = 9,991.69 × 9,991.69
  4. Step 4: Simplify right side
    4,536x = 99,833,819.10
  5. Step 5: Solve for x
    x = 99,833,819.10/4,536
  6. Step 6: Final answer
    x = 22,009.22

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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.