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Finding the Fourth Proportional to 7,226.52, 9,969.36 and 6,339.60

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Solution

The fourth proportional to 7,226.52, 9,969.36 and 6,339.60 is: 8,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.52 : 9,969.36 = 6,339.60 : x
  2. Step 2: Convert to fraction form
    7,226.52/9,969.36 = 6,339.60/x
  3. Step 3: Cross multiply
    7,226.52x = 9,969.36 × 6,339.60
  4. Step 4: Simplify right side
    7,226.52x = 63,201,754.66
  5. Step 5: Solve for x
    x = 63,201,754.66/7,226.52
  6. Step 6: Final answer
    x = 8,745.81

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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.