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Finding the Fourth Proportional to 3,606.56, 5,409.80 and 1,962.73

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Solution

The fourth proportional to 3,606.56, 5,409.80 and 1,962.73 is: 2,944.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.56 : 5,409.80 = 1,962.73 : x
  2. Step 2: Convert to fraction form
    3,606.56/5,409.80 = 1,962.73/x
  3. Step 3: Cross multiply
    3,606.56x = 5,409.80 × 1,962.73
  4. Step 4: Simplify right side
    3,606.56x = 10,617,976.75
  5. Step 5: Solve for x
    x = 10,617,976.75/3,606.56
  6. Step 6: Final answer
    x = 2,944.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.