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Finding the Fourth Proportional to 57,800.28, 79,759.74 and 33,907.80

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Solution

The fourth proportional to 57,800.28, 79,759.74 and 33,907.80 is: 46,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.28 : 79,759.74 = 33,907.80 : x
  2. Step 2: Convert to fraction form
    57,800.28/79,759.74 = 33,907.80/x
  3. Step 3: Cross multiply
    57,800.28x = 79,759.74 × 33,907.80
  4. Step 4: Simplify right side
    57,800.28x = 2,704,477,311.97
  5. Step 5: Solve for x
    x = 2,704,477,311.97/57,800.28
  6. Step 6: Final answer
    x = 46,790.04

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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.