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Finding the Fourth Proportional to 3,668.96, 5,506.31 and 1,914.44

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Solution

The fourth proportional to 3,668.96, 5,506.31 and 1,914.44 is: 2,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.96 : 5,506.31 = 1,914.44 : x
  2. Step 2: Convert to fraction form
    3,668.96/5,506.31 = 1,914.44/x
  3. Step 3: Cross multiply
    3,668.96x = 5,506.31 × 1,914.44
  4. Step 4: Simplify right side
    3,668.96x = 10,541,477.37
  5. Step 5: Solve for x
    x = 10,541,477.37/3,668.96
  6. Step 6: Final answer
    x = 2,873.15

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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.