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Finding the Fourth Proportional to 3,704.40, 5,559.12 and 1,974.24

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Solution

The fourth proportional to 3,704.40, 5,559.12 and 1,974.24 is: 2,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.40 : 5,559.12 = 1,974.24 : x
  2. Step 2: Convert to fraction form
    3,704.40/5,559.12 = 1,974.24/x
  3. Step 3: Cross multiply
    3,704.40x = 5,559.12 × 1,974.24
  4. Step 4: Simplify right side
    3,704.40x = 10,975,037.07
  5. Step 5: Solve for x
    x = 10,975,037.07/3,704.40
  6. Step 6: Final answer
    x = 2,962.70

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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.