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Finding the Third Proportional to 1,605,755.25 and 2,187,138

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Solution

The third proportional to 1,605,755.25 and 2,187,138 is: 2,979,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,755.25 : 2,187,138 = 2,187,138 : x
  2. Step 2: Convert to fraction form
    1,605,755.25/2,187,138 = 2,187,138/x
  3. Step 3: Cross multiply
    1,605,755.25x = 2,187,138 × 2,187,138
  4. Step 4: Simplify right side
    1,605,755.25x = 4,783,572,631,044
  5. Step 5: Solve for x
    x = 4,783,572,631,044/1,605,755.25
  6. Step 6: Final answer
    x = 2,979,017.28

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.