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Finding the Fourth Proportional to 7,396.56, 10,208.97 and 4,879.12

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Solution

The fourth proportional to 7,396.56, 10,208.97 and 4,879.12 is: 6,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396.56 : 10,208.97 = 4,879.12 : x
  2. Step 2: Convert to fraction form
    7,396.56/10,208.97 = 4,879.12/x
  3. Step 3: Cross multiply
    7,396.56x = 10,208.97 × 4,879.12
  4. Step 4: Simplify right side
    7,396.56x = 49,810,789.71
  5. Step 5: Solve for x
    x = 49,810,789.71/7,396.56
  6. Step 6: Final answer
    x = 6,734.32

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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.