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Finding the Fourth Proportional to 14,937.36, 20,611.20 and 8,648.52

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Solution

The fourth proportional to 14,937.36, 20,611.20 and 8,648.52 is: 11,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,937.36 : 20,611.20 = 8,648.52 : x
  2. Step 2: Convert to fraction form
    14,937.36/20,611.20 = 8,648.52/x
  3. Step 3: Cross multiply
    14,937.36x = 20,611.20 × 8,648.52
  4. Step 4: Simplify right side
    14,937.36x = 178,256,375.42
  5. Step 5: Solve for x
    x = 178,256,375.42/14,937.36
  6. Step 6: Final answer
    x = 11,933.59

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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.