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Finding the Fourth Proportional to 28,706.01, 43,067.18 and 11,180.85

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Solution

The fourth proportional to 28,706.01, 43,067.18 and 11,180.85 is: 16,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.01 : 43,067.18 = 11,180.85 : x
  2. Step 2: Convert to fraction form
    28,706.01/43,067.18 = 11,180.85/x
  3. Step 3: Cross multiply
    28,706.01x = 43,067.18 × 11,180.85
  4. Step 4: Simplify right side
    28,706.01x = 481,527,679.50
  5. Step 5: Solve for x
    x = 481,527,679.50/28,706.01
  6. Step 6: Final answer
    x = 16,774.46

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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.