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Finding the Fourth Proportional to 3,158.95, 4,738.43 and 967.68

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Solution

The fourth proportional to 3,158.95, 4,738.43 and 967.68 is: 1,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.95 : 4,738.43 = 967.68 : x
  2. Step 2: Convert to fraction form
    3,158.95/4,738.43 = 967.68/x
  3. Step 3: Cross multiply
    3,158.95x = 4,738.43 × 967.68
  4. Step 4: Simplify right side
    3,158.95x = 4,585,286.36
  5. Step 5: Solve for x
    x = 4,585,286.36/3,158.95
  6. Step 6: Final answer
    x = 1,451.52

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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.