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Finding the Fourth Proportional to 14,189.93, 19,581.64 and 8,447.36

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Solution

The fourth proportional to 14,189.93, 19,581.64 and 8,447.36 is: 11,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.93 : 19,581.64 = 8,447.36 : x
  2. Step 2: Convert to fraction form
    14,189.93/19,581.64 = 8,447.36/x
  3. Step 3: Cross multiply
    14,189.93x = 19,581.64 × 8,447.36
  4. Step 4: Simplify right side
    14,189.93x = 165,413,162.47
  5. Step 5: Solve for x
    x = 165,413,162.47/14,189.93
  6. Step 6: Final answer
    x = 11,657.09

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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.