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Finding the Fourth Proportional to 7,693.92, 11,541.42 and 2,499.75

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Solution

The fourth proportional to 7,693.92, 11,541.42 and 2,499.75 is: 3,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.92 : 11,541.42 = 2,499.75 : x
  2. Step 2: Convert to fraction form
    7,693.92/11,541.42 = 2,499.75/x
  3. Step 3: Cross multiply
    7,693.92x = 11,541.42 × 2,499.75
  4. Step 4: Simplify right side
    7,693.92x = 28,850,664.65
  5. Step 5: Solve for x
    x = 28,850,664.65/7,693.92
  6. Step 6: Final answer
    x = 3,749.80

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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.