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Finding the Third Proportional to 755,785 and 1,661,009

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Solution

The third proportional to 755,785 and 1,661,009 is: 3,650,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,785 : 1,661,009 = 1,661,009 : x
  2. Step 2: Convert to fraction form
    755,785/1,661,009 = 1,661,009/x
  3. Step 3: Cross multiply
    755,785x = 1,661,009 × 1,661,009
  4. Step 4: Simplify right side
    755,785x = 2,758,950,898,081
  5. Step 5: Solve for x
    x = 2,758,950,898,081/755,785
  6. Step 6: Final answer
    x = 3,650,444.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.