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Finding the Third Proportional to 3,816,907.31 and 8,231,640.19

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Solution

The third proportional to 3,816,907.31 and 8,231,640.19 is: 17,752,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816,907.31 : 8,231,640.19 = 8,231,640.19 : x
  2. Step 2: Convert to fraction form
    3,816,907.31/8,231,640.19 = 8,231,640.19/x
  3. Step 3: Cross multiply
    3,816,907.31x = 8,231,640.19 × 8,231,640.19
  4. Step 4: Simplify right side
    3,816,907.31x = 67,759,900,176,465.03
  5. Step 5: Solve for x
    x = 67,759,900,176,465.03/3,816,907.31
  6. Step 6: Final answer
    x = 17,752,566.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.