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Finding the Fourth Proportional to 7,673.25, 11,511.90 and 2,479.26

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Solution

The fourth proportional to 7,673.25, 11,511.90 and 2,479.26 is: 3,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.25 : 11,511.90 = 2,479.26 : x
  2. Step 2: Convert to fraction form
    7,673.25/11,511.90 = 2,479.26/x
  3. Step 3: Cross multiply
    7,673.25x = 11,511.90 × 2,479.26
  4. Step 4: Simplify right side
    7,673.25x = 28,540,993.19
  5. Step 5: Solve for x
    x = 28,540,993.19/7,673.25
  6. Step 6: Final answer
    x = 3,719.54

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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.