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Finding the Fourth Proportional to 18,048.42, 24,900.21 and 10,879.92

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Solution

The fourth proportional to 18,048.42, 24,900.21 and 10,879.92 is: 15,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,048.42 : 24,900.21 = 10,879.92 : x
  2. Step 2: Convert to fraction form
    18,048.42/24,900.21 = 10,879.92/x
  3. Step 3: Cross multiply
    18,048.42x = 24,900.21 × 10,879.92
  4. Step 4: Simplify right side
    18,048.42x = 270,912,292.78
  5. Step 5: Solve for x
    x = 270,912,292.78/18,048.42
  6. Step 6: Final answer
    x = 15,010.31

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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.