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Finding the Fourth Proportional to 6,759.52, 9,328.62 and 3,927.82

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Solution

The fourth proportional to 6,759.52, 9,328.62 and 3,927.82 is: 5,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.52 : 9,328.62 = 3,927.82 : x
  2. Step 2: Convert to fraction form
    6,759.52/9,328.62 = 3,927.82/x
  3. Step 3: Cross multiply
    6,759.52x = 9,328.62 × 3,927.82
  4. Step 4: Simplify right side
    6,759.52x = 36,641,140.21
  5. Step 5: Solve for x
    x = 36,641,140.21/6,759.52
  6. Step 6: Final answer
    x = 5,420.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.