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Finding the Fourth Proportional to 3,672.12, 5,067.18 and 2,975.16

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Solution

The fourth proportional to 3,672.12, 5,067.18 and 2,975.16 is: 4,105.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.12 : 5,067.18 = 2,975.16 : x
  2. Step 2: Convert to fraction form
    3,672.12/5,067.18 = 2,975.16/x
  3. Step 3: Cross multiply
    3,672.12x = 5,067.18 × 2,975.16
  4. Step 4: Simplify right side
    3,672.12x = 15,075,671.25
  5. Step 5: Solve for x
    x = 15,075,671.25/3,672.12
  6. Step 6: Final answer
    x = 4,105.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.