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Finding the Fourth Proportional to 30,348.93, 41,879.94 and 16,739.19

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Solution

The fourth proportional to 30,348.93, 41,879.94 and 16,739.19 is: 23,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.93 : 41,879.94 = 16,739.19 : x
  2. Step 2: Convert to fraction form
    30,348.93/41,879.94 = 16,739.19/x
  3. Step 3: Cross multiply
    30,348.93x = 41,879.94 × 16,739.19
  4. Step 4: Simplify right side
    30,348.93x = 701,036,272.85
  5. Step 5: Solve for x
    x = 701,036,272.85/30,348.93
  6. Step 6: Final answer
    x = 23,099.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.