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Finding the Fourth Proportional to 6,950.78, 9,591.72 and 3,806.36

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Solution

The fourth proportional to 6,950.78, 9,591.72 and 3,806.36 is: 5,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,950.78 : 9,591.72 = 3,806.36 : x
  2. Step 2: Convert to fraction form
    6,950.78/9,591.72 = 3,806.36/x
  3. Step 3: Cross multiply
    6,950.78x = 9,591.72 × 3,806.36
  4. Step 4: Simplify right side
    6,950.78x = 36,509,539.34
  5. Step 5: Solve for x
    x = 36,509,539.34/6,950.78
  6. Step 6: Final answer
    x = 5,252.58

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1.5x scale

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.