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Finding the Fourth Proportional to 43,409.57, 65,116.87 and 16,755.71

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Solution

The fourth proportional to 43,409.57, 65,116.87 and 16,755.71 is: 25,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,409.57 : 65,116.87 = 16,755.71 : x
  2. Step 2: Convert to fraction form
    43,409.57/65,116.87 = 16,755.71/x
  3. Step 3: Cross multiply
    43,409.57x = 65,116.87 × 16,755.71
  4. Step 4: Simplify right side
    43,409.57x = 1,091,079,064.24
  5. Step 5: Solve for x
    x = 1,091,079,064.24/43,409.57
  6. Step 6: Final answer
    x = 25,134.53

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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.