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Finding the Fourth Proportional to 3,591.70, 5,393.69 and 1,951.45

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Solution

The fourth proportional to 3,591.70, 5,393.69 and 1,951.45 is: 2,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.70 : 5,393.69 = 1,951.45 : x
  2. Step 2: Convert to fraction form
    3,591.70/5,393.69 = 1,951.45/x
  3. Step 3: Cross multiply
    3,591.70x = 5,393.69 × 1,951.45
  4. Step 4: Simplify right side
    3,591.70x = 10,525,516.35
  5. Step 5: Solve for x
    x = 10,525,516.35/3,591.70
  6. Step 6: Final answer
    x = 2,930.51

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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.