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Finding the Fourth Proportional to 18,591.55, 27,857.60 and 16,703.21

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Solution

The fourth proportional to 18,591.55, 27,857.60 and 16,703.21 is: 25,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.55 : 27,857.60 = 16,703.21 : x
  2. Step 2: Convert to fraction form
    18,591.55/27,857.60 = 16,703.21/x
  3. Step 3: Cross multiply
    18,591.55x = 27,857.60 × 16,703.21
  4. Step 4: Simplify right side
    18,591.55x = 465,311,344.68
  5. Step 5: Solve for x
    x = 465,311,344.68/18,591.55
  6. Step 6: Final answer
    x = 25,028.11

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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.