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Finding the Fourth Proportional to 17,771.24, 26,656.73 and 7,238.78

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Solution

The fourth proportional to 17,771.24, 26,656.73 and 7,238.78 is: 10,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,771.24 : 26,656.73 = 7,238.78 : x
  2. Step 2: Convert to fraction form
    17,771.24/26,656.73 = 7,238.78/x
  3. Step 3: Cross multiply
    17,771.24x = 26,656.73 × 7,238.78
  4. Step 4: Simplify right side
    17,771.24x = 192,962,203.99
  5. Step 5: Solve for x
    x = 192,962,203.99/17,771.24
  6. Step 6: Final answer
    x = 10,858.12

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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.