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Finding the Fourth Proportional to 18,119.10, 27,173.37 and 7,023.30

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Solution

The fourth proportional to 18,119.10, 27,173.37 and 7,023.30 is: 10,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.10 : 27,173.37 = 7,023.30 : x
  2. Step 2: Convert to fraction form
    18,119.10/27,173.37 = 7,023.30/x
  3. Step 3: Cross multiply
    18,119.10x = 27,173.37 × 7,023.30
  4. Step 4: Simplify right side
    18,119.10x = 190,846,729.52
  5. Step 5: Solve for x
    x = 190,846,729.52/18,119.10
  6. Step 6: Final answer
    x = 10,532.90

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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.