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Finding the Third Proportional to 1,782,141.75 and 3,906,276.75

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Solution

The third proportional to 1,782,141.75 and 3,906,276.75 is: 8,562,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,141.75 : 3,906,276.75 = 3,906,276.75 : x
  2. Step 2: Convert to fraction form
    1,782,141.75/3,906,276.75 = 3,906,276.75/x
  3. Step 3: Cross multiply
    1,782,141.75x = 3,906,276.75 × 3,906,276.75
  4. Step 4: Simplify right side
    1,782,141.75x = 15,258,998,047,590.56
  5. Step 5: Solve for x
    x = 15,258,998,047,590.56/1,782,141.75
  6. Step 6: Final answer
    x = 8,562,168.55

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.