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Finding the Third Proportional to 19,036 and 40,907

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Solution

The third proportional to 19,036 and 40,907 is: 87,906.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036 : 40,907 = 40,907 : x
  2. Step 2: Convert to fraction form
    19,036/40,907 = 40,907/x
  3. Step 3: Cross multiply
    19,036x = 40,907 × 40,907
  4. Step 4: Simplify right side
    19,036x = 1,673,382,649
  5. Step 5: Solve for x
    x = 1,673,382,649/19,036
  6. Step 6: Final answer
    x = 87,906.21

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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.