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Finding the Third Proportional to 2,278.13 and 3,451.36

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Solution

The third proportional to 2,278.13 and 3,451.36 is: 5,228.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.13 : 3,451.36 = 3,451.36 : x
  2. Step 2: Convert to fraction form
    2,278.13/3,451.36 = 3,451.36/x
  3. Step 3: Cross multiply
    2,278.13x = 3,451.36 × 3,451.36
  4. Step 4: Simplify right side
    2,278.13x = 11,911,881.54
  5. Step 5: Solve for x
    x = 11,911,881.54/2,278.13
  6. Step 6: Final answer
    x = 5,228.81

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.