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Finding the Fourth Proportional to 9,235.72, 13,855.56 and 2,993.86

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Solution

The fourth proportional to 9,235.72, 13,855.56 and 2,993.86 is: 4,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.72 : 13,855.56 = 2,993.86 : x
  2. Step 2: Convert to fraction form
    9,235.72/13,855.56 = 2,993.86/x
  3. Step 3: Cross multiply
    9,235.72x = 13,855.56 × 2,993.86
  4. Step 4: Simplify right side
    9,235.72x = 41,481,606.86
  5. Step 5: Solve for x
    x = 41,481,606.86/9,235.72
  6. Step 6: Final answer
    x = 4,491.43

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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.