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Finding the Fourth Proportional to 5,732.80, 8,589.60 and 2,804.80

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Solution

The fourth proportional to 5,732.80, 8,589.60 and 2,804.80 is: 4,202.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,732.80 : 8,589.60 = 2,804.80 : x
  2. Step 2: Convert to fraction form
    5,732.80/8,589.60 = 2,804.80/x
  3. Step 3: Cross multiply
    5,732.80x = 8,589.60 × 2,804.80
  4. Step 4: Simplify right side
    5,732.80x = 24,092,110.08
  5. Step 5: Solve for x
    x = 24,092,110.08/5,732.80
  6. Step 6: Final answer
    x = 4,202.50

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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.