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Finding the Third Proportional to 20,440.69 and 29,991.94

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Solution

The third proportional to 20,440.69 and 29,991.94 is: 44,006.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.69 : 29,991.94 = 29,991.94 : x
  2. Step 2: Convert to fraction form
    20,440.69/29,991.94 = 29,991.94/x
  3. Step 3: Cross multiply
    20,440.69x = 29,991.94 × 29,991.94
  4. Step 4: Simplify right side
    20,440.69x = 899,516,315.00
  5. Step 5: Solve for x
    x = 899,516,315.00/20,440.69
  6. Step 6: Final answer
    x = 44,006.17

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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.