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Finding the Third Proportional to 8,956.69 and 20,917.13

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Solution

The third proportional to 8,956.69 and 20,917.13 is: 48,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.69 : 20,917.13 = 20,917.13 : x
  2. Step 2: Convert to fraction form
    8,956.69/20,917.13 = 20,917.13/x
  3. Step 3: Cross multiply
    8,956.69x = 20,917.13 × 20,917.13
  4. Step 4: Simplify right side
    8,956.69x = 437,526,118.27
  5. Step 5: Solve for x
    x = 437,526,118.27/8,956.69
  6. Step 6: Final answer
    x = 48,849.10

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.