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Finding the Fourth Proportional to 55,963.57, 77,230.25 and 30,813.97

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Solution

The fourth proportional to 55,963.57, 77,230.25 and 30,813.97 is: 42,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.57 : 77,230.25 = 30,813.97 : x
  2. Step 2: Convert to fraction form
    55,963.57/77,230.25 = 30,813.97/x
  3. Step 3: Cross multiply
    55,963.57x = 77,230.25 × 30,813.97
  4. Step 4: Simplify right side
    55,963.57x = 2,379,770,452.52
  5. Step 5: Solve for x
    x = 2,379,770,452.52/55,963.57
  6. Step 6: Final answer
    x = 42,523.56

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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.