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Finding the Fourth Proportional to 5,798.85, 8,694.42 and 2,100.60

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Solution

The fourth proportional to 5,798.85, 8,694.42 and 2,100.60 is: 3,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.85 : 8,694.42 = 2,100.60 : x
  2. Step 2: Convert to fraction form
    5,798.85/8,694.42 = 2,100.60/x
  3. Step 3: Cross multiply
    5,798.85x = 8,694.42 × 2,100.60
  4. Step 4: Simplify right side
    5,798.85x = 18,263,498.65
  5. Step 5: Solve for x
    x = 18,263,498.65/5,798.85
  6. Step 6: Final answer
    x = 3,149.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.