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Finding the Fourth Proportional to 14,651.56, 21,979.50 and 4,261.96

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Solution

The fourth proportional to 14,651.56, 21,979.50 and 4,261.96 is: 6,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.56 : 21,979.50 = 4,261.96 : x
  2. Step 2: Convert to fraction form
    14,651.56/21,979.50 = 4,261.96/x
  3. Step 3: Cross multiply
    14,651.56x = 21,979.50 × 4,261.96
  4. Step 4: Simplify right side
    14,651.56x = 93,675,749.82
  5. Step 5: Solve for x
    x = 93,675,749.82/14,651.56
  6. Step 6: Final answer
    x = 6,393.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.