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Finding the Third Proportional to 3,451.36 and 5,486.48

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Solution

The third proportional to 3,451.36 and 5,486.48 is: 8,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.36 : 5,486.48 = 5,486.48 : x
  2. Step 2: Convert to fraction form
    3,451.36/5,486.48 = 5,486.48/x
  3. Step 3: Cross multiply
    3,451.36x = 5,486.48 × 5,486.48
  4. Step 4: Simplify right side
    3,451.36x = 30,101,510.80
  5. Step 5: Solve for x
    x = 30,101,510.80/3,451.36
  6. Step 6: Final answer
    x = 8,721.64

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.