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Finding the Fourth Proportional to 7,805.98, 10,771.92 and 4,269.16

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Solution

The fourth proportional to 7,805.98, 10,771.92 and 4,269.16 is: 5,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.98 : 10,771.92 = 4,269.16 : x
  2. Step 2: Convert to fraction form
    7,805.98/10,771.92 = 4,269.16/x
  3. Step 3: Cross multiply
    7,805.98x = 10,771.92 × 4,269.16
  4. Step 4: Simplify right side
    7,805.98x = 45,987,049.99
  5. Step 5: Solve for x
    x = 45,987,049.99/7,805.98
  6. Step 6: Final answer
    x = 5,891.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.