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Finding the Fourth Proportional to 17,857.73, 26,788.59 and 7,327.32

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Solution

The fourth proportional to 17,857.73, 26,788.59 and 7,327.32 is: 10,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.73 : 26,788.59 = 7,327.32 : x
  2. Step 2: Convert to fraction form
    17,857.73/26,788.59 = 7,327.32/x
  3. Step 3: Cross multiply
    17,857.73x = 26,788.59 × 7,327.32
  4. Step 4: Simplify right side
    17,857.73x = 196,288,571.28
  5. Step 5: Solve for x
    x = 196,288,571.28/17,857.73
  6. Step 6: Final answer
    x = 10,991.80

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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.