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Finding the Fourth Proportional to 19,057.35, 28,589.06 and 5,907

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Solution

The fourth proportional to 19,057.35, 28,589.06 and 5,907 is: 8,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.35 : 28,589.06 = 5,907 : x
  2. Step 2: Convert to fraction form
    19,057.35/28,589.06 = 5,907/x
  3. Step 3: Cross multiply
    19,057.35x = 28,589.06 × 5,907
  4. Step 4: Simplify right side
    19,057.35x = 168,875,577.42
  5. Step 5: Solve for x
    x = 168,875,577.42/19,057.35
  6. Step 6: Final answer
    x = 8,861.44

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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.