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Finding the Fourth Proportional to 6,471.50, 8,930.16 and 3,638.34

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Solution

The fourth proportional to 6,471.50, 8,930.16 and 3,638.34 is: 5,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.50 : 8,930.16 = 3,638.34 : x
  2. Step 2: Convert to fraction form
    6,471.50/8,930.16 = 3,638.34/x
  3. Step 3: Cross multiply
    6,471.50x = 8,930.16 × 3,638.34
  4. Step 4: Simplify right side
    6,471.50x = 32,490,958.33
  5. Step 5: Solve for x
    x = 32,490,958.33/6,471.50
  6. Step 6: Final answer
    x = 5,020.63

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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.