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Finding the Fourth Proportional to 7,651.08, 11,475.10 and 3,489.96

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Solution

The fourth proportional to 7,651.08, 11,475.10 and 3,489.96 is: 5,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.08 : 11,475.10 = 3,489.96 : x
  2. Step 2: Convert to fraction form
    7,651.08/11,475.10 = 3,489.96/x
  3. Step 3: Cross multiply
    7,651.08x = 11,475.10 × 3,489.96
  4. Step 4: Simplify right side
    7,651.08x = 40,047,640.00
  5. Step 5: Solve for x
    x = 40,047,640.00/7,651.08
  6. Step 6: Final answer
    x = 5,234.25

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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.