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Finding the Fourth Proportional to 43,571, 65,366.22 and 15,869

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Solution

The fourth proportional to 43,571, 65,366.22 and 15,869 is: 23,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,571 : 65,366.22 = 15,869 : x
  2. Step 2: Convert to fraction form
    43,571/65,366.22 = 15,869/x
  3. Step 3: Cross multiply
    43,571x = 65,366.22 × 15,869
  4. Step 4: Simplify right side
    43,571x = 1,037,296,545.18
  5. Step 5: Solve for x
    x = 1,037,296,545.18/43,571
  6. Step 6: Final answer
    x = 23,807.04

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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.