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Finding the Fourth Proportional to 5,674.75, 8,505.81 and 4,283.57

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Solution

The fourth proportional to 5,674.75, 8,505.81 and 4,283.57 is: 6,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.75 : 8,505.81 = 4,283.57 : x
  2. Step 2: Convert to fraction form
    5,674.75/8,505.81 = 4,283.57/x
  3. Step 3: Cross multiply
    5,674.75x = 8,505.81 × 4,283.57
  4. Step 4: Simplify right side
    5,674.75x = 36,435,232.54
  5. Step 5: Solve for x
    x = 36,435,232.54/5,674.75
  6. Step 6: Final answer
    x = 6,420.59

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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.