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Finding the Fourth Proportional to 7,322.44, 10,975.02 and 3,857.80

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Solution

The fourth proportional to 7,322.44, 10,975.02 and 3,857.80 is: 5,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.44 : 10,975.02 = 3,857.80 : x
  2. Step 2: Convert to fraction form
    7,322.44/10,975.02 = 3,857.80/x
  3. Step 3: Cross multiply
    7,322.44x = 10,975.02 × 3,857.80
  4. Step 4: Simplify right side
    7,322.44x = 42,339,432.16
  5. Step 5: Solve for x
    x = 42,339,432.16/7,322.44
  6. Step 6: Final answer
    x = 5,782.15

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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.