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Finding the Fourth Proportional to 15,998.67, 23,998.02 and 4,311.90

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Solution

The fourth proportional to 15,998.67, 23,998.02 and 4,311.90 is: 6,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.67 : 23,998.02 = 4,311.90 : x
  2. Step 2: Convert to fraction form
    15,998.67/23,998.02 = 4,311.90/x
  3. Step 3: Cross multiply
    15,998.67x = 23,998.02 × 4,311.90
  4. Step 4: Simplify right side
    15,998.67x = 103,477,062.44
  5. Step 5: Solve for x
    x = 103,477,062.44/15,998.67
  6. Step 6: Final answer
    x = 6,467.85

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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.