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Finding the Fourth Proportional to 18,567.99, 27,845.49 and 11,173.77

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Solution

The fourth proportional to 18,567.99, 27,845.49 and 11,173.77 is: 16,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.99 : 27,845.49 = 11,173.77 : x
  2. Step 2: Convert to fraction form
    18,567.99/27,845.49 = 11,173.77/x
  3. Step 3: Cross multiply
    18,567.99x = 27,845.49 × 11,173.77
  4. Step 4: Simplify right side
    18,567.99x = 311,139,100.80
  5. Step 5: Solve for x
    x = 311,139,100.80/18,567.99
  6. Step 6: Final answer
    x = 16,756.75

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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.