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Finding the Fourth Proportional to 7,399.96, 10,212.18 and 4,043.08

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Solution

The fourth proportional to 7,399.96, 10,212.18 and 4,043.08 is: 5,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.96 : 10,212.18 = 4,043.08 : x
  2. Step 2: Convert to fraction form
    7,399.96/10,212.18 = 4,043.08/x
  3. Step 3: Cross multiply
    7,399.96x = 10,212.18 × 4,043.08
  4. Step 4: Simplify right side
    7,399.96x = 41,288,660.71
  5. Step 5: Solve for x
    x = 41,288,660.71/7,399.96
  6. Step 6: Final answer
    x = 5,579.58

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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.