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Finding the Third Proportional to 275,215.50 and 591,120

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Solution

The third proportional to 275,215.50 and 591,120 is: 1,269,633.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,215.50 : 591,120 = 591,120 : x
  2. Step 2: Convert to fraction form
    275,215.50/591,120 = 591,120/x
  3. Step 3: Cross multiply
    275,215.50x = 591,120 × 591,120
  4. Step 4: Simplify right side
    275,215.50x = 349,422,854,400
  5. Step 5: Solve for x
    x = 349,422,854,400/275,215.50
  6. Step 6: Final answer
    x = 1,269,633.63

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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.