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Finding the Fourth Proportional to 4,879.68, 7,269.57 and 4,644.57

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Solution

The fourth proportional to 4,879.68, 7,269.57 and 4,644.57 is: 6,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.68 : 7,269.57 = 4,644.57 : x
  2. Step 2: Convert to fraction form
    4,879.68/7,269.57 = 4,644.57/x
  3. Step 3: Cross multiply
    4,879.68x = 7,269.57 × 4,644.57
  4. Step 4: Simplify right side
    4,879.68x = 33,764,026.73
  5. Step 5: Solve for x
    x = 33,764,026.73/4,879.68
  6. Step 6: Final answer
    x = 6,919.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.