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Finding the Fourth Proportional to 14,611.99, 20,164.14 and 8,238.52

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Solution

The fourth proportional to 14,611.99, 20,164.14 and 8,238.52 is: 11,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.99 : 20,164.14 = 8,238.52 : x
  2. Step 2: Convert to fraction form
    14,611.99/20,164.14 = 8,238.52/x
  3. Step 3: Cross multiply
    14,611.99x = 20,164.14 × 8,238.52
  4. Step 4: Simplify right side
    14,611.99x = 166,122,629.48
  5. Step 5: Solve for x
    x = 166,122,629.48/14,611.99
  6. Step 6: Final answer
    x = 11,368.93

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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.