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Finding the Third Proportional to 2,031,309.75 and 3,155,448.75

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Solution

The third proportional to 2,031,309.75 and 3,155,448.75 is: 4,901,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031,309.75 : 3,155,448.75 = 3,155,448.75 : x
  2. Step 2: Convert to fraction form
    2,031,309.75/3,155,448.75 = 3,155,448.75/x
  3. Step 3: Cross multiply
    2,031,309.75x = 3,155,448.75 × 3,155,448.75
  4. Step 4: Simplify right side
    2,031,309.75x = 9,956,856,813,876.56
  5. Step 5: Solve for x
    x = 9,956,856,813,876.56/2,031,309.75
  6. Step 6: Final answer
    x = 4,901,693.02

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.