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Finding the Fourth Proportional to 3,451.56, 4,763.16 and 1,879.66

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Solution

The fourth proportional to 3,451.56, 4,763.16 and 1,879.66 is: 2,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.56 : 4,763.16 = 1,879.66 : x
  2. Step 2: Convert to fraction form
    3,451.56/4,763.16 = 1,879.66/x
  3. Step 3: Cross multiply
    3,451.56x = 4,763.16 × 1,879.66
  4. Step 4: Simplify right side
    3,451.56x = 8,953,121.33
  5. Step 5: Solve for x
    x = 8,953,121.33/3,451.56
  6. Step 6: Final answer
    x = 2,593.93

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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.