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Finding the Fourth Proportional to 4,800.01, 7,200.01 and 3,163.86

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Solution

The fourth proportional to 4,800.01, 7,200.01 and 3,163.86 is: 4,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.01 : 7,200.01 = 3,163.86 : x
  2. Step 2: Convert to fraction form
    4,800.01/7,200.01 = 3,163.86/x
  3. Step 3: Cross multiply
    4,800.01x = 7,200.01 × 3,163.86
  4. Step 4: Simplify right side
    4,800.01x = 22,779,813.55
  5. Step 5: Solve for x
    x = 22,779,813.55/4,800.01
  6. Step 6: Final answer
    x = 4,745.79

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Half scale
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Similar ratio
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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.