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Finding the Fourth Proportional to 18,803.27, 25,941.63 and 11,249.81

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Solution

The fourth proportional to 18,803.27, 25,941.63 and 11,249.81 is: 15,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.27 : 25,941.63 = 11,249.81 : x
  2. Step 2: Convert to fraction form
    18,803.27/25,941.63 = 11,249.81/x
  3. Step 3: Cross multiply
    18,803.27x = 25,941.63 × 11,249.81
  4. Step 4: Simplify right side
    18,803.27x = 291,838,408.59
  5. Step 5: Solve for x
    x = 291,838,408.59/18,803.27
  6. Step 6: Final answer
    x = 15,520.62

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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.