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Finding the Fourth Proportional to 80,782.44, 111,480.86 and 44,488.20

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Solution

The fourth proportional to 80,782.44, 111,480.86 and 44,488.20 is: 61,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,782.44 : 111,480.86 = 44,488.20 : x
  2. Step 2: Convert to fraction form
    80,782.44/111,480.86 = 44,488.20/x
  3. Step 3: Cross multiply
    80,782.44x = 111,480.86 × 44,488.20
  4. Step 4: Simplify right side
    80,782.44x = 4,959,582,795.85
  5. Step 5: Solve for x
    x = 4,959,582,795.85/80,782.44
  6. Step 6: Final answer
    x = 61,394.32

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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.