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Finding the Fourth Proportional to 6,385.82, 8,810.37 and 4,149.50

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Solution

The fourth proportional to 6,385.82, 8,810.37 and 4,149.50 is: 5,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.82 : 8,810.37 = 4,149.50 : x
  2. Step 2: Convert to fraction form
    6,385.82/8,810.37 = 4,149.50/x
  3. Step 3: Cross multiply
    6,385.82x = 8,810.37 × 4,149.50
  4. Step 4: Simplify right side
    6,385.82x = 36,558,630.32
  5. Step 5: Solve for x
    x = 36,558,630.32/6,385.82
  6. Step 6: Final answer
    x = 5,724.97

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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.