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Finding the Fourth Proportional to 3,535.94, 4,879.40 and 1,964.00

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Solution

The fourth proportional to 3,535.94, 4,879.40 and 1,964.00 is: 2,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.94 : 4,879.40 = 1,964.00 : x
  2. Step 2: Convert to fraction form
    3,535.94/4,879.40 = 1,964.00/x
  3. Step 3: Cross multiply
    3,535.94x = 4,879.40 × 1,964.00
  4. Step 4: Simplify right side
    3,535.94x = 9,583,107.38
  5. Step 5: Solve for x
    x = 9,583,107.38/3,535.94
  6. Step 6: Final answer
    x = 2,710.20

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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.