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Finding the Fourth Proportional to 11,041.96, 15,238.98 and 8,242.60

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Solution

The fourth proportional to 11,041.96, 15,238.98 and 8,242.60 is: 11,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,041.96 : 15,238.98 = 8,242.60 : x
  2. Step 2: Convert to fraction form
    11,041.96/15,238.98 = 8,242.60/x
  3. Step 3: Cross multiply
    11,041.96x = 15,238.98 × 8,242.60
  4. Step 4: Simplify right side
    11,041.96x = 125,608,816.55
  5. Step 5: Solve for x
    x = 125,608,816.55/11,041.96
  6. Step 6: Final answer
    x = 11,375.59

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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.