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Finding the Fourth Proportional to 29,242.46, 43,855.89 and 8,181.18

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Solution

The fourth proportional to 29,242.46, 43,855.89 and 8,181.18 is: 12,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,242.46 : 43,855.89 = 8,181.18 : x
  2. Step 2: Convert to fraction form
    29,242.46/43,855.89 = 8,181.18/x
  3. Step 3: Cross multiply
    29,242.46x = 43,855.89 × 8,181.18
  4. Step 4: Simplify right side
    29,242.46x = 358,792,930.15
  5. Step 5: Solve for x
    x = 358,792,930.15/29,242.46
  6. Step 6: Final answer
    x = 12,269.59

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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.