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Finding the Fourth Proportional to 33,079.70, 49,619.55 and 19,957.70

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Solution

The fourth proportional to 33,079.70, 49,619.55 and 19,957.70 is: 29,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,079.70 : 49,619.55 = 19,957.70 : x
  2. Step 2: Convert to fraction form
    33,079.70/49,619.55 = 19,957.70/x
  3. Step 3: Cross multiply
    33,079.70x = 49,619.55 × 19,957.70
  4. Step 4: Simplify right side
    33,079.70x = 990,292,093.04
  5. Step 5: Solve for x
    x = 990,292,093.04/33,079.70
  6. Step 6: Final answer
    x = 29,936.55

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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.