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Finding the Fourth Proportional to 5,682.75, 7,839.62 and 3,323.85

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Solution

The fourth proportional to 5,682.75, 7,839.62 and 3,323.85 is: 4,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.75 : 7,839.62 = 3,323.85 : x
  2. Step 2: Convert to fraction form
    5,682.75/7,839.62 = 3,323.85/x
  3. Step 3: Cross multiply
    5,682.75x = 7,839.62 × 3,323.85
  4. Step 4: Simplify right side
    5,682.75x = 26,057,704.32
  5. Step 5: Solve for x
    x = 26,057,704.32/5,682.75
  6. Step 6: Final answer
    x = 4,585.40

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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.