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Finding the Fourth Proportional to 6,287.83, 8,678.27 and 3,636.85

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Solution

The fourth proportional to 6,287.83, 8,678.27 and 3,636.85 is: 5,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.83 : 8,678.27 = 3,636.85 : x
  2. Step 2: Convert to fraction form
    6,287.83/8,678.27 = 3,636.85/x
  3. Step 3: Cross multiply
    6,287.83x = 8,678.27 × 3,636.85
  4. Step 4: Simplify right side
    6,287.83x = 31,561,566.25
  5. Step 5: Solve for x
    x = 31,561,566.25/6,287.83
  6. Step 6: Final answer
    x = 5,019.47

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