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Finding the Fourth Proportional to 18,071.14, 27,110.04 and 8,211.16

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Solution

The fourth proportional to 18,071.14, 27,110.04 and 8,211.16 is: 12,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.14 : 27,110.04 = 8,211.16 : x
  2. Step 2: Convert to fraction form
    18,071.14/27,110.04 = 8,211.16/x
  3. Step 3: Cross multiply
    18,071.14x = 27,110.04 × 8,211.16
  4. Step 4: Simplify right side
    18,071.14x = 222,604,876.05
  5. Step 5: Solve for x
    x = 222,604,876.05/18,071.14
  6. Step 6: Final answer
    x = 12,318.25

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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.