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Finding the Third Proportional to 2,789,938.69 and 3,948,846.19

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Solution

The third proportional to 2,789,938.69 and 3,948,846.19 is: 5,589,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789,938.69 : 3,948,846.19 = 3,948,846.19 : x
  2. Step 2: Convert to fraction form
    2,789,938.69/3,948,846.19 = 3,948,846.19/x
  3. Step 3: Cross multiply
    2,789,938.69x = 3,948,846.19 × 3,948,846.19
  4. Step 4: Simplify right side
    2,789,938.69x = 15,593,386,212,533.29
  5. Step 5: Solve for x
    x = 15,593,386,212,533.29/2,789,938.69
  6. Step 6: Final answer
    x = 5,589,150.14

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.