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Finding the Fourth Proportional to 8,791.74, 13,187.52 and 3,525.30

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Solution

The fourth proportional to 8,791.74, 13,187.52 and 3,525.30 is: 5,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.74 : 13,187.52 = 3,525.30 : x
  2. Step 2: Convert to fraction form
    8,791.74/13,187.52 = 3,525.30/x
  3. Step 3: Cross multiply
    8,791.74x = 13,187.52 × 3,525.30
  4. Step 4: Simplify right side
    8,791.74x = 46,489,964.26
  5. Step 5: Solve for x
    x = 46,489,964.26/8,791.74
  6. Step 6: Final answer
    x = 5,287.91

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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.