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Finding the Third Proportional to 3,120,855 and 6,813,246

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Solution

The third proportional to 3,120,855 and 6,813,246 is: 14,874,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,855 : 6,813,246 = 6,813,246 : x
  2. Step 2: Convert to fraction form
    3,120,855/6,813,246 = 6,813,246/x
  3. Step 3: Cross multiply
    3,120,855x = 6,813,246 × 6,813,246
  4. Step 4: Simplify right side
    3,120,855x = 46,420,321,056,516
  5. Step 5: Solve for x
    x = 46,420,321,056,516/3,120,855
  6. Step 6: Final answer
    x = 14,874,231.92

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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.