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Finding the Third Proportional to 3,121,659 and 6,809,087.81

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Solution

The third proportional to 3,121,659 and 6,809,087.81 is: 14,852,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,659 : 6,809,087.81 = 6,809,087.81 : x
  2. Step 2: Convert to fraction form
    3,121,659/6,809,087.81 = 6,809,087.81/x
  3. Step 3: Cross multiply
    3,121,659x = 6,809,087.81 × 6,809,087.81
  4. Step 4: Simplify right side
    3,121,659x = 46,363,676,838,336.03
  5. Step 5: Solve for x
    x = 46,363,676,838,336.03/3,121,659
  6. Step 6: Final answer
    x = 14,852,255.43

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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.