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Finding the Fourth Proportional to 18,567.57, 27,855.41 and 7,474.62

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Solution

The fourth proportional to 18,567.57, 27,855.41 and 7,474.62 is: 11,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.57 : 27,855.41 = 7,474.62 : x
  2. Step 2: Convert to fraction form
    18,567.57/27,855.41 = 7,474.62/x
  3. Step 3: Cross multiply
    18,567.57x = 27,855.41 × 7,474.62
  4. Step 4: Simplify right side
    18,567.57x = 208,208,567.32
  5. Step 5: Solve for x
    x = 208,208,567.32/18,567.57
  6. Step 6: Final answer
    x = 11,213.56

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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.