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Finding the Fourth Proportional to 3,672, 5,067.36 and 2,016

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Solution

The fourth proportional to 3,672, 5,067.36 and 2,016 is: 2,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672 : 5,067.36 = 2,016 : x
  2. Step 2: Convert to fraction form
    3,672/5,067.36 = 2,016/x
  3. Step 3: Cross multiply
    3,672x = 5,067.36 × 2,016
  4. Step 4: Simplify right side
    3,672x = 10,215,797.76
  5. Step 5: Solve for x
    x = 10,215,797.76/3,672
  6. Step 6: Final answer
    x = 2,782.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.