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Finding the Fourth Proportional to 19,161.01, 28,745.84 and 5,835.20

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Solution

The fourth proportional to 19,161.01, 28,745.84 and 5,835.20 is: 8,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.01 : 28,745.84 = 5,835.20 : x
  2. Step 2: Convert to fraction form
    19,161.01/28,745.84 = 5,835.20/x
  3. Step 3: Cross multiply
    19,161.01x = 28,745.84 × 5,835.20
  4. Step 4: Simplify right side
    19,161.01x = 167,737,704.22
  5. Step 5: Solve for x
    x = 167,737,704.22/19,161.01
  6. Step 6: Final answer
    x = 8,754.12

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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.