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Finding the Fourth Proportional to 21,379.41, 32,069.12 and 5,796.63

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Solution

The fourth proportional to 21,379.41, 32,069.12 and 5,796.63 is: 8,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.41 : 32,069.12 = 5,796.63 : x
  2. Step 2: Convert to fraction form
    21,379.41/32,069.12 = 5,796.63/x
  3. Step 3: Cross multiply
    21,379.41x = 32,069.12 × 5,796.63
  4. Step 4: Simplify right side
    21,379.41x = 185,892,794.08
  5. Step 5: Solve for x
    x = 185,892,794.08/21,379.41
  6. Step 6: Final answer
    x = 8,694.95

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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.