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Finding the Fourth Proportional to 31,149.70, 46,738.22 and 16,355.18

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Solution

The fourth proportional to 31,149.70, 46,738.22 and 16,355.18 is: 24,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,149.70 : 46,738.22 = 16,355.18 : x
  2. Step 2: Convert to fraction form
    31,149.70/46,738.22 = 16,355.18/x
  3. Step 3: Cross multiply
    31,149.70x = 46,738.22 × 16,355.18
  4. Step 4: Simplify right side
    31,149.70x = 764,412,000.98
  5. Step 5: Solve for x
    x = 764,412,000.98/31,149.70
  6. Step 6: Final answer
    x = 24,539.95

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1.5x scale

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.