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Finding the Third Proportional to 2,239.88 and 3,579.75

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Solution

The third proportional to 2,239.88 and 3,579.75 is: 5,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.88 : 3,579.75 = 3,579.75 : x
  2. Step 2: Convert to fraction form
    2,239.88/3,579.75 = 3,579.75/x
  3. Step 3: Cross multiply
    2,239.88x = 3,579.75 × 3,579.75
  4. Step 4: Simplify right side
    2,239.88x = 12,814,610.06
  5. Step 5: Solve for x
    x = 12,814,610.06/2,239.88
  6. Step 6: Final answer
    x = 5,721.13

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.