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Finding the Fourth Proportional to 43,993.70, 66,000.78 and 14,409.74

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Solution

The fourth proportional to 43,993.70, 66,000.78 and 14,409.74 is: 21,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,993.70 : 66,000.78 = 14,409.74 : x
  2. Step 2: Convert to fraction form
    43,993.70/66,000.78 = 14,409.74/x
  3. Step 3: Cross multiply
    43,993.70x = 66,000.78 × 14,409.74
  4. Step 4: Simplify right side
    43,993.70x = 951,053,749.59
  5. Step 5: Solve for x
    x = 951,053,749.59/43,993.70
  6. Step 6: Final answer
    x = 21,617.96

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Why These Related Problems?

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