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Finding the Fourth Proportional to 14,963.81, 20,650.03 and 8,249.39

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Solution

The fourth proportional to 14,963.81, 20,650.03 and 8,249.39 is: 11,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.81 : 20,650.03 = 8,249.39 : x
  2. Step 2: Convert to fraction form
    14,963.81/20,650.03 = 8,249.39/x
  3. Step 3: Cross multiply
    14,963.81x = 20,650.03 × 8,249.39
  4. Step 4: Simplify right side
    14,963.81x = 170,350,150.98
  5. Step 5: Solve for x
    x = 170,350,150.98/14,963.81
  6. Step 6: Final answer
    x = 11,384.14

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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.