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Finding the Fourth Proportional to 4,879.21, 6,733.31 and 2,641.08

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Solution

The fourth proportional to 4,879.21, 6,733.31 and 2,641.08 is: 3,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.21 : 6,733.31 = 2,641.08 : x
  2. Step 2: Convert to fraction form
    4,879.21/6,733.31 = 2,641.08/x
  3. Step 3: Cross multiply
    4,879.21x = 6,733.31 × 2,641.08
  4. Step 4: Simplify right side
    4,879.21x = 17,783,169.32
  5. Step 5: Solve for x
    x = 17,783,169.32/4,879.21
  6. Step 6: Final answer
    x = 3,644.68

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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.