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Finding the Fourth Proportional to 5,751.67, 8,631.78 and 4,274.31

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Solution

The fourth proportional to 5,751.67, 8,631.78 and 4,274.31 is: 6,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.67 : 8,631.78 = 4,274.31 : x
  2. Step 2: Convert to fraction form
    5,751.67/8,631.78 = 4,274.31/x
  3. Step 3: Cross multiply
    5,751.67x = 8,631.78 × 4,274.31
  4. Step 4: Simplify right side
    5,751.67x = 36,894,903.57
  5. Step 5: Solve for x
    x = 36,894,903.57/5,751.67
  6. Step 6: Final answer
    x = 6,414.64

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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.