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Finding the Fourth Proportional to 5,879.88, 8,116.92 and 3,643.02

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Solution

The fourth proportional to 5,879.88, 8,116.92 and 3,643.02 is: 5,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.88 : 8,116.92 = 3,643.02 : x
  2. Step 2: Convert to fraction form
    5,879.88/8,116.92 = 3,643.02/x
  3. Step 3: Cross multiply
    5,879.88x = 8,116.92 × 3,643.02
  4. Step 4: Simplify right side
    5,879.88x = 29,570,101.90
  5. Step 5: Solve for x
    x = 29,570,101.90/5,879.88
  6. Step 6: Final answer
    x = 5,029.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.