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Finding the Fourth Proportional to 33,183, 49,657.59 and 20,708.91

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Solution

The fourth proportional to 33,183, 49,657.59 and 20,708.91 is: 30,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,183 : 49,657.59 = 20,708.91 : x
  2. Step 2: Convert to fraction form
    33,183/49,657.59 = 20,708.91/x
  3. Step 3: Cross multiply
    33,183x = 49,657.59 × 20,708.91
  4. Step 4: Simplify right side
    33,183x = 1,028,354,562.13
  5. Step 5: Solve for x
    x = 1,028,354,562.13/33,183
  6. Step 6: Final answer
    x = 30,990.40

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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.