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Finding the Fourth Proportional to 36,019.87, 49,702.84 and 20,104.99

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Solution

The fourth proportional to 36,019.87, 49,702.84 and 20,104.99 is: 27,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,019.87 : 49,702.84 = 20,104.99 : x
  2. Step 2: Convert to fraction form
    36,019.87/49,702.84 = 20,104.99/x
  3. Step 3: Cross multiply
    36,019.87x = 49,702.84 × 20,104.99
  4. Step 4: Simplify right side
    36,019.87x = 999,275,262.78
  5. Step 5: Solve for x
    x = 999,275,262.78/36,019.87
  6. Step 6: Final answer
    x = 27,742.33

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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.