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Finding the Fourth Proportional to 14,369.49, 19,829.71 and 8,081.87

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Solution

The fourth proportional to 14,369.49, 19,829.71 and 8,081.87 is: 11,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.49 : 19,829.71 = 8,081.87 : x
  2. Step 2: Convert to fraction form
    14,369.49/19,829.71 = 8,081.87/x
  3. Step 3: Cross multiply
    14,369.49x = 19,829.71 × 8,081.87
  4. Step 4: Simplify right side
    14,369.49x = 160,261,019.00
  5. Step 5: Solve for x
    x = 160,261,019.00/14,369.49
  6. Step 6: Final answer
    x = 11,152.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.