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Finding the Fourth Proportional to 29,379.80, 44,110.20 and 18,914.60

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Solution

The fourth proportional to 29,379.80, 44,110.20 and 18,914.60 is: 28,397.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,379.80 : 44,110.20 = 18,914.60 : x
  2. Step 2: Convert to fraction form
    29,379.80/44,110.20 = 18,914.60/x
  3. Step 3: Cross multiply
    29,379.80x = 44,110.20 × 18,914.60
  4. Step 4: Simplify right side
    29,379.80x = 834,326,788.92
  5. Step 5: Solve for x
    x = 834,326,788.92/29,379.80
  6. Step 6: Final answer
    x = 28,397.97

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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.