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Finding the Fourth Proportional to 18,800.01, 28,201.76 and 6,149.84

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Solution

The fourth proportional to 18,800.01, 28,201.76 and 6,149.84 is: 9,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.01 : 28,201.76 = 6,149.84 : x
  2. Step 2: Convert to fraction form
    18,800.01/28,201.76 = 6,149.84/x
  3. Step 3: Cross multiply
    18,800.01x = 28,201.76 × 6,149.84
  4. Step 4: Simplify right side
    18,800.01x = 173,436,311.72
  5. Step 5: Solve for x
    x = 173,436,311.72/18,800.01
  6. Step 6: Final answer
    x = 9,225.33

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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.