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Finding the Fourth Proportional to 17,855.75, 26,784.87 and 7,467.50

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Solution

The fourth proportional to 17,855.75, 26,784.87 and 7,467.50 is: 11,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.75 : 26,784.87 = 7,467.50 : x
  2. Step 2: Convert to fraction form
    17,855.75/26,784.87 = 7,467.50/x
  3. Step 3: Cross multiply
    17,855.75x = 26,784.87 × 7,467.50
  4. Step 4: Simplify right side
    17,855.75x = 200,015,979.39
  5. Step 5: Solve for x
    x = 200,015,979.39/17,855.75
  6. Step 6: Final answer
    x = 11,201.77

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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.