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Finding the Fourth Proportional to 2,588.86, 3,571.11 and 1,879.87

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Solution

The fourth proportional to 2,588.86, 3,571.11 and 1,879.87 is: 2,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.86 : 3,571.11 = 1,879.87 : x
  2. Step 2: Convert to fraction form
    2,588.86/3,571.11 = 1,879.87/x
  3. Step 3: Cross multiply
    2,588.86x = 3,571.11 × 1,879.87
  4. Step 4: Simplify right side
    2,588.86x = 6,713,222.56
  5. Step 5: Solve for x
    x = 6,713,222.56/2,588.86
  6. Step 6: Final answer
    x = 2,593.12

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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.