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Finding the Fourth Proportional to 3,509.72, 4,843.50 and 1,937.85

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Solution

The fourth proportional to 3,509.72, 4,843.50 and 1,937.85 is: 2,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.72 : 4,843.50 = 1,937.85 : x
  2. Step 2: Convert to fraction form
    3,509.72/4,843.50 = 1,937.85/x
  3. Step 3: Cross multiply
    3,509.72x = 4,843.50 × 1,937.85
  4. Step 4: Simplify right side
    3,509.72x = 9,385,942.57
  5. Step 5: Solve for x
    x = 9,385,942.57/3,509.72
  6. Step 6: Final answer
    x = 2,674.27

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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.