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Finding the Fourth Proportional to 11,158.88, 15,399.25 and 6,190.88

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Solution

The fourth proportional to 11,158.88, 15,399.25 and 6,190.88 is: 8,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.88 : 15,399.25 = 6,190.88 : x
  2. Step 2: Convert to fraction form
    11,158.88/15,399.25 = 6,190.88/x
  3. Step 3: Cross multiply
    11,158.88x = 15,399.25 × 6,190.88
  4. Step 4: Simplify right side
    11,158.88x = 95,334,816.37
  5. Step 5: Solve for x
    x = 95,334,816.37/11,158.88
  6. Step 6: Final answer
    x = 8,543.41

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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.