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Finding the Fourth Proportional to 18,567.96, 27,854.34 and 6,879.96

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Solution

The fourth proportional to 18,567.96, 27,854.34 and 6,879.96 is: 10,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.96 : 27,854.34 = 6,879.96 : x
  2. Step 2: Convert to fraction form
    18,567.96/27,854.34 = 6,879.96/x
  3. Step 3: Cross multiply
    18,567.96x = 27,854.34 × 6,879.96
  4. Step 4: Simplify right side
    18,567.96x = 191,636,745.03
  5. Step 5: Solve for x
    x = 191,636,745.03/18,567.96
  6. Step 6: Final answer
    x = 10,320.83

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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.