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Finding the Fourth Proportional to 14,850.15, 20,493.15 and 8,136.20

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Solution

The fourth proportional to 14,850.15, 20,493.15 and 8,136.20 is: 11,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,850.15 : 20,493.15 = 8,136.20 : x
  2. Step 2: Convert to fraction form
    14,850.15/20,493.15 = 8,136.20/x
  3. Step 3: Cross multiply
    14,850.15x = 20,493.15 × 8,136.20
  4. Step 4: Simplify right side
    14,850.15x = 166,736,264.56
  5. Step 5: Solve for x
    x = 166,736,264.56/14,850.15
  6. Step 6: Final answer
    x = 11,227.92

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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.