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Finding the Fourth Proportional to 11,296.88, 15,589.69 and 6,328.88

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Solution

The fourth proportional to 11,296.88, 15,589.69 and 6,328.88 is: 8,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.88 : 15,589.69 = 6,328.88 : x
  2. Step 2: Convert to fraction form
    11,296.88/15,589.69 = 6,328.88/x
  3. Step 3: Cross multiply
    11,296.88x = 15,589.69 × 6,328.88
  4. Step 4: Simplify right side
    11,296.88x = 98,665,183.48
  5. Step 5: Solve for x
    x = 98,665,183.48/11,296.88
  6. Step 6: Final answer
    x = 8,733.85

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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.