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Finding the Third Proportional to 861,136.75 and 1,853,903

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Solution

The third proportional to 861,136.75 and 1,853,903 is: 3,991,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,136.75 : 1,853,903 = 1,853,903 : x
  2. Step 2: Convert to fraction form
    861,136.75/1,853,903 = 1,853,903/x
  3. Step 3: Cross multiply
    861,136.75x = 1,853,903 × 1,853,903
  4. Step 4: Simplify right side
    861,136.75x = 3,436,956,333,409
  5. Step 5: Solve for x
    x = 3,436,956,333,409/861,136.75
  6. Step 6: Final answer
    x = 3,991,185.29

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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.