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Finding the Third Proportional to 1,785,912.94 and 3,918,661.78

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Solution

The third proportional to 1,785,912.94 and 3,918,661.78 is: 8,598,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,912.94 : 3,918,661.78 = 3,918,661.78 : x
  2. Step 2: Convert to fraction form
    1,785,912.94/3,918,661.78 = 3,918,661.78/x
  3. Step 3: Cross multiply
    1,785,912.94x = 3,918,661.78 × 3,918,661.78
  4. Step 4: Simplify right side
    1,785,912.94x = 15,355,910,155,829.42
  5. Step 5: Solve for x
    x = 15,355,910,155,829.42/1,785,912.94
  6. Step 6: Final answer
    x = 8,598,353.16

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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.