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Finding the Fourth Proportional to 10,245.27, 14,138.09 and 5,707.84

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Solution

The fourth proportional to 10,245.27, 14,138.09 and 5,707.84 is: 7,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.27 : 14,138.09 = 5,707.84 : x
  2. Step 2: Convert to fraction form
    10,245.27/14,138.09 = 5,707.84/x
  3. Step 3: Cross multiply
    10,245.27x = 14,138.09 × 5,707.84
  4. Step 4: Simplify right side
    10,245.27x = 80,697,923.60
  5. Step 5: Solve for x
    x = 80,697,923.60/10,245.27
  6. Step 6: Final answer
    x = 7,876.61

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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.