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Finding the Fourth Proportional to 27,893.62, 41,840.42 and 8,172.17

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Solution

The fourth proportional to 27,893.62, 41,840.42 and 8,172.17 is: 12,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.62 : 41,840.42 = 8,172.17 : x
  2. Step 2: Convert to fraction form
    27,893.62/41,840.42 = 8,172.17/x
  3. Step 3: Cross multiply
    27,893.62x = 41,840.42 × 8,172.17
  4. Step 4: Simplify right side
    27,893.62x = 341,926,814.27
  5. Step 5: Solve for x
    x = 341,926,814.27/27,893.62
  6. Step 6: Final answer
    x = 12,258.25

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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.