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Finding the Fourth Proportional to 4,879.71, 6,733.96 and 2,641.53

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Solution

The fourth proportional to 4,879.71, 6,733.96 and 2,641.53 is: 3,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.71 : 6,733.96 = 2,641.53 : x
  2. Step 2: Convert to fraction form
    4,879.71/6,733.96 = 2,641.53/x
  3. Step 3: Cross multiply
    4,879.71x = 6,733.96 × 2,641.53
  4. Step 4: Simplify right side
    4,879.71x = 17,787,968.33
  5. Step 5: Solve for x
    x = 17,787,968.33/4,879.71
  6. Step 6: Final answer
    x = 3,645.29

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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.