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Finding the Fourth Proportional to 18,144.54, 27,223.86 and 7,059.06

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Solution

The fourth proportional to 18,144.54, 27,223.86 and 7,059.06 is: 10,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.54 : 27,223.86 = 7,059.06 : x
  2. Step 2: Convert to fraction form
    18,144.54/27,223.86 = 7,059.06/x
  3. Step 3: Cross multiply
    18,144.54x = 27,223.86 × 7,059.06
  4. Step 4: Simplify right side
    18,144.54x = 192,174,861.17
  5. Step 5: Solve for x
    x = 192,174,861.17/18,144.54
  6. Step 6: Final answer
    x = 10,591.33

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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.