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Finding the Fourth Proportional to 14,379.80, 19,842.70 and 8,092.04

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Solution

The fourth proportional to 14,379.80, 19,842.70 and 8,092.04 is: 11,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.80 : 19,842.70 = 8,092.04 : x
  2. Step 2: Convert to fraction form
    14,379.80/19,842.70 = 8,092.04/x
  3. Step 3: Cross multiply
    14,379.80x = 19,842.70 × 8,092.04
  4. Step 4: Simplify right side
    14,379.80x = 160,567,922.11
  5. Step 5: Solve for x
    x = 160,567,922.11/14,379.80
  6. Step 6: Final answer
    x = 11,166.21

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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.