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Finding the Fourth Proportional to 57,865.70, 79,855.31 and 33,993.38

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Solution

The fourth proportional to 57,865.70, 79,855.31 and 33,993.38 is: 46,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,865.70 : 79,855.31 = 33,993.38 : x
  2. Step 2: Convert to fraction form
    57,865.70/79,855.31 = 33,993.38/x
  3. Step 3: Cross multiply
    57,865.70x = 79,855.31 × 33,993.38
  4. Step 4: Simplify right side
    57,865.70x = 2,714,552,182.47
  5. Step 5: Solve for x
    x = 2,714,552,182.47/57,865.70
  6. Step 6: Final answer
    x = 46,911.25

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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.