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Finding the Fourth Proportional to 14,379.93, 19,845.27 and 8,006.45

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Solution

The fourth proportional to 14,379.93, 19,845.27 and 8,006.45 is: 11,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.93 : 19,845.27 = 8,006.45 : x
  2. Step 2: Convert to fraction form
    14,379.93/19,845.27 = 8,006.45/x
  3. Step 3: Cross multiply
    14,379.93x = 19,845.27 × 8,006.45
  4. Step 4: Simplify right side
    14,379.93x = 158,890,062.77
  5. Step 5: Solve for x
    x = 158,890,062.77/14,379.93
  6. Step 6: Final answer
    x = 11,049.43

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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.