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Finding the Fourth Proportional to 57,728.91, 79,661.70 and 33,518.82

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Solution

The fourth proportional to 57,728.91, 79,661.70 and 33,518.82 is: 46,253.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.91 : 79,661.70 = 33,518.82 : x
  2. Step 2: Convert to fraction form
    57,728.91/79,661.70 = 33,518.82/x
  3. Step 3: Cross multiply
    57,728.91x = 79,661.70 × 33,518.82
  4. Step 4: Simplify right side
    57,728.91x = 2,670,166,183.19
  5. Step 5: Solve for x
    x = 2,670,166,183.19/57,728.91
  6. Step 6: Final answer
    x = 46,253.54

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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.