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Finding the Fourth Proportional to 18,769.92, 25,891.02 and 14,514.18

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Solution

The fourth proportional to 18,769.92, 25,891.02 and 14,514.18 is: 20,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.92 : 25,891.02 = 14,514.18 : x
  2. Step 2: Convert to fraction form
    18,769.92/25,891.02 = 14,514.18/x
  3. Step 3: Cross multiply
    18,769.92x = 25,891.02 × 14,514.18
  4. Step 4: Simplify right side
    18,769.92x = 375,786,924.66
  5. Step 5: Solve for x
    x = 375,786,924.66/18,769.92
  6. Step 6: Final answer
    x = 20,020.70

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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.