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Finding the Fourth Proportional to 3,158.94, 4,738.41 and 967.38

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Solution

The fourth proportional to 3,158.94, 4,738.41 and 967.38 is: 1,451.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.94 : 4,738.41 = 967.38 : x
  2. Step 2: Convert to fraction form
    3,158.94/4,738.41 = 967.38/x
  3. Step 3: Cross multiply
    3,158.94x = 4,738.41 × 967.38
  4. Step 4: Simplify right side
    3,158.94x = 4,583,843.07
  5. Step 5: Solve for x
    x = 4,583,843.07/3,158.94
  6. Step 6: Final answer
    x = 1,451.07

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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.