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Finding the Fourth Proportional to 7,228.42, 9,976.37 and 4,243.68

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Solution

The fourth proportional to 7,228.42, 9,976.37 and 4,243.68 is: 5,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.42 : 9,976.37 = 4,243.68 : x
  2. Step 2: Convert to fraction form
    7,228.42/9,976.37 = 4,243.68/x
  3. Step 3: Cross multiply
    7,228.42x = 9,976.37 × 4,243.68
  4. Step 4: Simplify right side
    7,228.42x = 42,336,501.02
  5. Step 5: Solve for x
    x = 42,336,501.02/7,228.42
  6. Step 6: Final answer
    x = 5,856.95

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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.