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Finding the Third Proportional to 1,871,778.69 and 4,027,280.13

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Solution

The third proportional to 1,871,778.69 and 4,027,280.13 is: 8,665,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,778.69 : 4,027,280.13 = 4,027,280.13 : x
  2. Step 2: Convert to fraction form
    1,871,778.69/4,027,280.13 = 4,027,280.13/x
  3. Step 3: Cross multiply
    1,871,778.69x = 4,027,280.13 × 4,027,280.13
  4. Step 4: Simplify right side
    1,871,778.69x = 16,218,985,205,220.02
  5. Step 5: Solve for x
    x = 16,218,985,205,220.02/1,871,778.69
  6. Step 6: Final answer
    x = 8,665,012.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.