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Finding the Fourth Proportional to 14,519.52, 20,035.20 and 8,231.52

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Solution

The fourth proportional to 14,519.52, 20,035.20 and 8,231.52 is: 11,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.52 : 20,035.20 = 8,231.52 : x
  2. Step 2: Convert to fraction form
    14,519.52/20,035.20 = 8,231.52/x
  3. Step 3: Cross multiply
    14,519.52x = 20,035.20 × 8,231.52
  4. Step 4: Simplify right side
    14,519.52x = 164,920,149.50
  5. Step 5: Solve for x
    x = 164,920,149.50/14,519.52
  6. Step 6: Final answer
    x = 11,358.51

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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.