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Finding the Fourth Proportional to 3,535.98, 4,879.62 and 1,963.80

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Solution

The fourth proportional to 3,535.98, 4,879.62 and 1,963.80 is: 2,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.98 : 4,879.62 = 1,963.80 : x
  2. Step 2: Convert to fraction form
    3,535.98/4,879.62 = 1,963.80/x
  3. Step 3: Cross multiply
    3,535.98x = 4,879.62 × 1,963.80
  4. Step 4: Simplify right side
    3,535.98x = 9,582,597.76
  5. Step 5: Solve for x
    x = 9,582,597.76/3,535.98
  6. Step 6: Final answer
    x = 2,710.03

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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.