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Finding the Fourth Proportional to 49,706.44, 68,596.78 and 28,489.80

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Solution

The fourth proportional to 49,706.44, 68,596.78 and 28,489.80 is: 39,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,706.44 : 68,596.78 = 28,489.80 : x
  2. Step 2: Convert to fraction form
    49,706.44/68,596.78 = 28,489.80/x
  3. Step 3: Cross multiply
    49,706.44x = 68,596.78 × 28,489.80
  4. Step 4: Simplify right side
    49,706.44x = 1,954,308,542.84
  5. Step 5: Solve for x
    x = 1,954,308,542.84/49,706.44
  6. Step 6: Final answer
    x = 39,317.01

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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.