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Finding the Fourth Proportional to 5,763.80, 8,648.40 and 2,993.60

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Solution

The fourth proportional to 5,763.80, 8,648.40 and 2,993.60 is: 4,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,763.80 : 8,648.40 = 2,993.60 : x
  2. Step 2: Convert to fraction form
    5,763.80/8,648.40 = 2,993.60/x
  3. Step 3: Cross multiply
    5,763.80x = 8,648.40 × 2,993.60
  4. Step 4: Simplify right side
    5,763.80x = 25,889,850.24
  5. Step 5: Solve for x
    x = 25,889,850.24/5,763.80
  6. Step 6: Final answer
    x = 4,491.80

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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.