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Finding the Fourth Proportional to 3,338.74, 5,006.22 and 1,146.61

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Solution

The fourth proportional to 3,338.74, 5,006.22 and 1,146.61 is: 1,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.74 : 5,006.22 = 1,146.61 : x
  2. Step 2: Convert to fraction form
    3,338.74/5,006.22 = 1,146.61/x
  3. Step 3: Cross multiply
    3,338.74x = 5,006.22 × 1,146.61
  4. Step 4: Simplify right side
    3,338.74x = 5,740,181.91
  5. Step 5: Solve for x
    x = 5,740,181.91/3,338.74
  6. Step 6: Final answer
    x = 1,719.27

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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.