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Finding the Third Proportional to 20,147.48 and 43,905.80

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Solution

The third proportional to 20,147.48 and 43,905.80 is: 95,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.48 : 43,905.80 = 43,905.80 : x
  2. Step 2: Convert to fraction form
    20,147.48/43,905.80 = 43,905.80/x
  3. Step 3: Cross multiply
    20,147.48x = 43,905.80 × 43,905.80
  4. Step 4: Simplify right side
    20,147.48x = 1,927,718,999.23
  5. Step 5: Solve for x
    x = 1,927,718,999.23/20,147.48
  6. Step 6: Final answer
    x = 95,680.38

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.