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Finding the Fourth Proportional to 18,704.82, 28,057.23 and 7,009.83

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Solution

The fourth proportional to 18,704.82, 28,057.23 and 7,009.83 is: 10,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.82 : 28,057.23 = 7,009.83 : x
  2. Step 2: Convert to fraction form
    18,704.82/28,057.23 = 7,009.83/x
  3. Step 3: Cross multiply
    18,704.82x = 28,057.23 × 7,009.83
  4. Step 4: Simplify right side
    18,704.82x = 196,676,412.57
  5. Step 5: Solve for x
    x = 196,676,412.57/18,704.82
  6. Step 6: Final answer
    x = 10,514.75

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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.