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Finding the Third Proportional to 3,191,119.88 and 4,789,944.56

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Solution

The third proportional to 3,191,119.88 and 4,789,944.56 is: 7,189,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,119.88 : 4,789,944.56 = 4,789,944.56 : x
  2. Step 2: Convert to fraction form
    3,191,119.88/4,789,944.56 = 4,789,944.56/x
  3. Step 3: Cross multiply
    3,191,119.88x = 4,789,944.56 × 4,789,944.56
  4. Step 4: Simplify right side
    3,191,119.88x = 22,943,568,911,823.32
  5. Step 5: Solve for x
    x = 22,943,568,911,823.32/3,191,119.88
  6. Step 6: Final answer
    x = 7,189,817.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.