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Finding the Fourth Proportional to 4,813.86, 6,636.74 and 4,321.79

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Solution

The fourth proportional to 4,813.86, 6,636.74 and 4,321.79 is: 5,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.86 : 6,636.74 = 4,321.79 : x
  2. Step 2: Convert to fraction form
    4,813.86/6,636.74 = 4,321.79/x
  3. Step 3: Cross multiply
    4,813.86x = 6,636.74 × 4,321.79
  4. Step 4: Simplify right side
    4,813.86x = 28,682,566.66
  5. Step 5: Solve for x
    x = 28,682,566.66/4,813.86
  6. Step 6: Final answer
    x = 5,958.33

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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.