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Finding the Fourth Proportional to 3,340.66, 5,015.10 and 3,168.44

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Solution

The fourth proportional to 3,340.66, 5,015.10 and 3,168.44 is: 4,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.66 : 5,015.10 = 3,168.44 : x
  2. Step 2: Convert to fraction form
    3,340.66/5,015.10 = 3,168.44/x
  3. Step 3: Cross multiply
    3,340.66x = 5,015.10 × 3,168.44
  4. Step 4: Simplify right side
    3,340.66x = 15,890,043.44
  5. Step 5: Solve for x
    x = 15,890,043.44/3,340.66
  6. Step 6: Final answer
    x = 4,756.56

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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.