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Finding the Fourth Proportional to 18,169.50, 27,261.09 and 5,857.50

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Solution

The fourth proportional to 18,169.50, 27,261.09 and 5,857.50 is: 8,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.50 : 27,261.09 = 5,857.50 : x
  2. Step 2: Convert to fraction form
    18,169.50/27,261.09 = 5,857.50/x
  3. Step 3: Cross multiply
    18,169.50x = 27,261.09 × 5,857.50
  4. Step 4: Simplify right side
    18,169.50x = 159,681,834.68
  5. Step 5: Solve for x
    x = 159,681,834.68/18,169.50
  6. Step 6: Final answer
    x = 8,788.46

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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.