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Finding the Third Proportional to 19,431.75 and 41,700.75

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Solution

The third proportional to 19,431.75 and 41,700.75 is: 89,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.75 : 41,700.75 = 41,700.75 : x
  2. Step 2: Convert to fraction form
    19,431.75/41,700.75 = 41,700.75/x
  3. Step 3: Cross multiply
    19,431.75x = 41,700.75 × 41,700.75
  4. Step 4: Simplify right side
    19,431.75x = 1,738,952,550.56
  5. Step 5: Solve for x
    x = 1,738,952,550.56/19,431.75
  6. Step 6: Final answer
    x = 89,490.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.