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Finding the Fourth Proportional to 7,239.06, 9,990.27 and 4,096.26

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Solution

The fourth proportional to 7,239.06, 9,990.27 and 4,096.26 is: 5,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.06 : 9,990.27 = 4,096.26 : x
  2. Step 2: Convert to fraction form
    7,239.06/9,990.27 = 4,096.26/x
  3. Step 3: Cross multiply
    7,239.06x = 9,990.27 × 4,096.26
  4. Step 4: Simplify right side
    7,239.06x = 40,922,743.39
  5. Step 5: Solve for x
    x = 40,922,743.39/7,239.06
  6. Step 6: Final answer
    x = 5,653.05

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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.