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Finding the Fourth Proportional to 14,169.69, 21,238.95 and 5,845.16

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Solution

The fourth proportional to 14,169.69, 21,238.95 and 5,845.16 is: 8,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.69 : 21,238.95 = 5,845.16 : x
  2. Step 2: Convert to fraction form
    14,169.69/21,238.95 = 5,845.16/x
  3. Step 3: Cross multiply
    14,169.69x = 21,238.95 × 5,845.16
  4. Step 4: Simplify right side
    14,169.69x = 124,145,060.98
  5. Step 5: Solve for x
    x = 124,145,060.98/14,169.69
  6. Step 6: Final answer
    x = 8,761.31

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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.