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Finding the Fourth Proportional to 43,409.68, 65,134.77 and 15,350.98

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Solution

The fourth proportional to 43,409.68, 65,134.77 and 15,350.98 is: 23,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,409.68 : 65,134.77 = 15,350.98 : x
  2. Step 2: Convert to fraction form
    43,409.68/65,134.77 = 15,350.98/x
  3. Step 3: Cross multiply
    43,409.68x = 65,134.77 × 15,350.98
  4. Step 4: Simplify right side
    43,409.68x = 999,882,551.57
  5. Step 5: Solve for x
    x = 999,882,551.57/43,409.68
  6. Step 6: Final answer
    x = 23,033.63

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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.