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Finding the Fourth Proportional to 4,620.69, 6,929.19 and 2,674.26

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Solution

The fourth proportional to 4,620.69, 6,929.19 and 2,674.26 is: 4,010.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.69 : 6,929.19 = 2,674.26 : x
  2. Step 2: Convert to fraction form
    4,620.69/6,929.19 = 2,674.26/x
  3. Step 3: Cross multiply
    4,620.69x = 6,929.19 × 2,674.26
  4. Step 4: Simplify right side
    4,620.69x = 18,530,455.65
  5. Step 5: Solve for x
    x = 18,530,455.65/4,620.69
  6. Step 6: Final answer
    x = 4,010.32

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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.