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Finding the Third Proportional to 55,586.25 and 81,911.25

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Solution

The third proportional to 55,586.25 and 81,911.25 is: 120,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,586.25 : 81,911.25 = 81,911.25 : x
  2. Step 2: Convert to fraction form
    55,586.25/81,911.25 = 81,911.25/x
  3. Step 3: Cross multiply
    55,586.25x = 81,911.25 × 81,911.25
  4. Step 4: Simplify right side
    55,586.25x = 6,709,452,876.56
  5. Step 5: Solve for x
    x = 6,709,452,876.56/55,586.25
  6. Step 6: Final answer
    x = 120,703.46

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.