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Finding the Third Proportional to 43,021.13 and 66,445.31

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Solution

The third proportional to 43,021.13 and 66,445.31 is: 102,623.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.13 : 66,445.31 = 66,445.31 : x
  2. Step 2: Convert to fraction form
    43,021.13/66,445.31 = 66,445.31/x
  3. Step 3: Cross multiply
    43,021.13x = 66,445.31 × 66,445.31
  4. Step 4: Simplify right side
    43,021.13x = 4,414,979,553.22
  5. Step 5: Solve for x
    x = 4,414,979,553.22/43,021.13
  6. Step 6: Final answer
    x = 102,623.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.