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Finding the Fourth Proportional to 8,976.69, 13,466.81 and 2,651.68

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Solution

The fourth proportional to 8,976.69, 13,466.81 and 2,651.68 is: 3,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.69 : 13,466.81 = 2,651.68 : x
  2. Step 2: Convert to fraction form
    8,976.69/13,466.81 = 2,651.68/x
  3. Step 3: Cross multiply
    8,976.69x = 13,466.81 × 2,651.68
  4. Step 4: Simplify right side
    8,976.69x = 35,709,608.51
  5. Step 5: Solve for x
    x = 35,709,608.51/8,976.69
  6. Step 6: Final answer
    x = 3,978.04

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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.