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Finding the Fourth Proportional to 5,259.44, 7,890.60 and 2,183.60

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Solution

The fourth proportional to 5,259.44, 7,890.60 and 2,183.60 is: 3,276.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.44 : 7,890.60 = 2,183.60 : x
  2. Step 2: Convert to fraction form
    5,259.44/7,890.60 = 2,183.60/x
  3. Step 3: Cross multiply
    5,259.44x = 7,890.60 × 2,183.60
  4. Step 4: Simplify right side
    5,259.44x = 17,229,914.16
  5. Step 5: Solve for x
    x = 17,229,914.16/5,259.44
  6. Step 6: Final answer
    x = 3,276.00

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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.