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Finding the Fourth Proportional to 6,359.86, 9,539.19 and 3,893.41

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Solution

The fourth proportional to 6,359.86, 9,539.19 and 3,893.41 is: 5,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.86 : 9,539.19 = 3,893.41 : x
  2. Step 2: Convert to fraction form
    6,359.86/9,539.19 = 3,893.41/x
  3. Step 3: Cross multiply
    6,359.86x = 9,539.19 × 3,893.41
  4. Step 4: Simplify right side
    6,359.86x = 37,139,977.74
  5. Step 5: Solve for x
    x = 37,139,977.74/6,359.86
  6. Step 6: Final answer
    x = 5,839.75

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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.