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Finding the Fourth Proportional to 7,843.98, 10,824.02 and 4,486.26

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Solution

The fourth proportional to 7,843.98, 10,824.02 and 4,486.26 is: 6,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.98 : 10,824.02 = 4,486.26 : x
  2. Step 2: Convert to fraction form
    7,843.98/10,824.02 = 4,486.26/x
  3. Step 3: Cross multiply
    7,843.98x = 10,824.02 × 4,486.26
  4. Step 4: Simplify right side
    7,843.98x = 48,559,367.97
  5. Step 5: Solve for x
    x = 48,559,367.97/7,843.98
  6. Step 6: Final answer
    x = 6,190.65

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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.