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Finding the Fourth Proportional to 29,662.80, 44,468.37 and 12,121.44

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Solution

The fourth proportional to 29,662.80, 44,468.37 and 12,121.44 is: 18,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,662.80 : 44,468.37 = 12,121.44 : x
  2. Step 2: Convert to fraction form
    29,662.80/44,468.37 = 12,121.44/x
  3. Step 3: Cross multiply
    29,662.80x = 44,468.37 × 12,121.44
  4. Step 4: Simplify right side
    29,662.80x = 539,020,678.85
  5. Step 5: Solve for x
    x = 539,020,678.85/29,662.80
  6. Step 6: Final answer
    x = 18,171.60

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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.