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Finding the Fourth Proportional to 57,986.88, 79,843.95 and 50,775.54

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Solution

The fourth proportional to 57,986.88, 79,843.95 and 50,775.54 is: 69,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,986.88 : 79,843.95 = 50,775.54 : x
  2. Step 2: Convert to fraction form
    57,986.88/79,843.95 = 50,775.54/x
  3. Step 3: Cross multiply
    57,986.88x = 79,843.95 × 50,775.54
  4. Step 4: Simplify right side
    57,986.88x = 4,054,119,676.98
  5. Step 5: Solve for x
    x = 4,054,119,676.98/57,986.88
  6. Step 6: Final answer
    x = 69,914.43

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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.