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Finding the Fourth Proportional to 18,803.99, 28,207.37 and 6,323.96

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Solution

The fourth proportional to 18,803.99, 28,207.37 and 6,323.96 is: 9,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.99 : 28,207.37 = 6,323.96 : x
  2. Step 2: Convert to fraction form
    18,803.99/28,207.37 = 6,323.96/x
  3. Step 3: Cross multiply
    18,803.99x = 28,207.37 × 6,323.96
  4. Step 4: Simplify right side
    18,803.99x = 178,382,106.93
  5. Step 5: Solve for x
    x = 178,382,106.93/18,803.99
  6. Step 6: Final answer
    x = 9,486.40

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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.