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Finding the Fourth Proportional to 2,659.62, 3,989.26 and 1,016.32

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Solution

The fourth proportional to 2,659.62, 3,989.26 and 1,016.32 is: 1,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.62 : 3,989.26 = 1,016.32 : x
  2. Step 2: Convert to fraction form
    2,659.62/3,989.26 = 1,016.32/x
  3. Step 3: Cross multiply
    2,659.62x = 3,989.26 × 1,016.32
  4. Step 4: Simplify right side
    2,659.62x = 4,054,364.72
  5. Step 5: Solve for x
    x = 4,054,364.72/2,659.62
  6. Step 6: Final answer
    x = 1,524.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.