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Finding the Fourth Proportional to 3,759.94, 5,640.72 and 1,567.54

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Solution

The fourth proportional to 3,759.94, 5,640.72 and 1,567.54 is: 2,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.94 : 5,640.72 = 1,567.54 : x
  2. Step 2: Convert to fraction form
    3,759.94/5,640.72 = 1,567.54/x
  3. Step 3: Cross multiply
    3,759.94x = 5,640.72 × 1,567.54
  4. Step 4: Simplify right side
    3,759.94x = 8,842,054.23
  5. Step 5: Solve for x
    x = 8,842,054.23/3,759.94
  6. Step 6: Final answer
    x = 2,351.65

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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.