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Finding the Fourth Proportional to 19,323.62, 28,992.72 and 6,843.14

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Solution

The fourth proportional to 19,323.62, 28,992.72 and 6,843.14 is: 10,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.62 : 28,992.72 = 6,843.14 : x
  2. Step 2: Convert to fraction form
    19,323.62/28,992.72 = 6,843.14/x
  3. Step 3: Cross multiply
    19,323.62x = 28,992.72 × 6,843.14
  4. Step 4: Simplify right side
    19,323.62x = 198,401,241.94
  5. Step 5: Solve for x
    x = 198,401,241.94/19,323.62
  6. Step 6: Final answer
    x = 10,267.29

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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.