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Finding the Fourth Proportional to 18,567.60, 27,793.08 and 13,859.52

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Solution

The fourth proportional to 18,567.60, 27,793.08 and 13,859.52 is: 20,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.60 : 27,793.08 = 13,859.52 : x
  2. Step 2: Convert to fraction form
    18,567.60/27,793.08 = 13,859.52/x
  3. Step 3: Cross multiply
    18,567.60x = 27,793.08 × 13,859.52
  4. Step 4: Simplify right side
    18,567.60x = 385,198,748.12
  5. Step 5: Solve for x
    x = 385,198,748.12/18,567.60
  6. Step 6: Final answer
    x = 20,745.75

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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.