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Finding the Fourth Proportional to 11,879.04, 17,811.98 and 4,863.98

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Solution

The fourth proportional to 11,879.04, 17,811.98 and 4,863.98 is: 7,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.04 : 17,811.98 = 4,863.98 : x
  2. Step 2: Convert to fraction form
    11,879.04/17,811.98 = 4,863.98/x
  3. Step 3: Cross multiply
    11,879.04x = 17,811.98 × 4,863.98
  4. Step 4: Simplify right side
    11,879.04x = 86,637,180.29
  5. Step 5: Solve for x
    x = 86,637,180.29/11,879.04
  6. Step 6: Final answer
    x = 7,293.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.