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Finding the Fourth Proportional to 7,813.82, 10,783.81 and 4,277.56

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Solution

The fourth proportional to 7,813.82, 10,783.81 and 4,277.56 is: 5,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.82 : 10,783.81 = 4,277.56 : x
  2. Step 2: Convert to fraction form
    7,813.82/10,783.81 = 4,277.56/x
  3. Step 3: Cross multiply
    7,813.82x = 10,783.81 × 4,277.56
  4. Step 4: Simplify right side
    7,813.82x = 46,128,380.88
  5. Step 5: Solve for x
    x = 46,128,380.88/7,813.82
  6. Step 6: Final answer
    x = 5,903.44

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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.