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Finding the Third Proportional to 57,447 and 86,231.25

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Solution

The third proportional to 57,447 and 86,231.25 is: 129,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,447 : 86,231.25 = 86,231.25 : x
  2. Step 2: Convert to fraction form
    57,447/86,231.25 = 86,231.25/x
  3. Step 3: Cross multiply
    57,447x = 86,231.25 × 86,231.25
  4. Step 4: Simplify right side
    57,447x = 7,435,828,476.56
  5. Step 5: Solve for x
    x = 7,435,828,476.56/57,447
  6. Step 6: Final answer
    x = 129,438.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.