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Finding the Fourth Proportional to 18,998.03, 28,479.62 and 7,302.44

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Solution

The fourth proportional to 18,998.03, 28,479.62 and 7,302.44 is: 10,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.03 : 28,479.62 = 7,302.44 : x
  2. Step 2: Convert to fraction form
    18,998.03/28,479.62 = 7,302.44/x
  3. Step 3: Cross multiply
    18,998.03x = 28,479.62 × 7,302.44
  4. Step 4: Simplify right side
    18,998.03x = 207,970,716.27
  5. Step 5: Solve for x
    x = 207,970,716.27/18,998.03
  6. Step 6: Final answer
    x = 10,946.96

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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.