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Finding the Fourth Proportional to 13,252.50, 19,879.11 and 4,018.50

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Solution

The fourth proportional to 13,252.50, 19,879.11 and 4,018.50 is: 6,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.50 : 19,879.11 = 4,018.50 : x
  2. Step 2: Convert to fraction form
    13,252.50/19,879.11 = 4,018.50/x
  3. Step 3: Cross multiply
    13,252.50x = 19,879.11 × 4,018.50
  4. Step 4: Simplify right side
    13,252.50x = 79,884,203.54
  5. Step 5: Solve for x
    x = 79,884,203.54/13,252.50
  6. Step 6: Final answer
    x = 6,027.86

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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.