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Finding the Fourth Proportional to 14,396.96, 19,866.56 and 8,108.48

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Solution

The fourth proportional to 14,396.96, 19,866.56 and 8,108.48 is: 11,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.96 : 19,866.56 = 8,108.48 : x
  2. Step 2: Convert to fraction form
    14,396.96/19,866.56 = 8,108.48/x
  3. Step 3: Cross multiply
    14,396.96x = 19,866.56 × 8,108.48
  4. Step 4: Simplify right side
    14,396.96x = 161,087,604.43
  5. Step 5: Solve for x
    x = 161,087,604.43/14,396.96
  6. Step 6: Final answer
    x = 11,189.00

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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.