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Finding the Fourth Proportional to 3,326.63, 4,981.29 and 3,228.03

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Solution

The fourth proportional to 3,326.63, 4,981.29 and 3,228.03 is: 4,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.63 : 4,981.29 = 3,228.03 : x
  2. Step 2: Convert to fraction form
    3,326.63/4,981.29 = 3,228.03/x
  3. Step 3: Cross multiply
    3,326.63x = 4,981.29 × 3,228.03
  4. Step 4: Simplify right side
    3,326.63x = 16,079,753.56
  5. Step 5: Solve for x
    x = 16,079,753.56/3,326.63
  6. Step 6: Final answer
    x = 4,833.65

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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.