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Finding the Fourth Proportional to 18,514.92, 25,524 and 13,200.52

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Solution

The fourth proportional to 18,514.92, 25,524 and 13,200.52 is: 18,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.92 : 25,524 = 13,200.52 : x
  2. Step 2: Convert to fraction form
    18,514.92/25,524 = 13,200.52/x
  3. Step 3: Cross multiply
    18,514.92x = 25,524 × 13,200.52
  4. Step 4: Simplify right side
    18,514.92x = 336,930,072.48
  5. Step 5: Solve for x
    x = 336,930,072.48/18,514.92
  6. Step 6: Final answer
    x = 18,197.76

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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.