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Finding the Fourth Proportional to 18,392.67, 25,380.12 and 10,324.47

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Solution

The fourth proportional to 18,392.67, 25,380.12 and 10,324.47 is: 14,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.67 : 25,380.12 = 10,324.47 : x
  2. Step 2: Convert to fraction form
    18,392.67/25,380.12 = 10,324.47/x
  3. Step 3: Cross multiply
    18,392.67x = 25,380.12 × 10,324.47
  4. Step 4: Simplify right side
    18,392.67x = 262,036,350.99
  5. Step 5: Solve for x
    x = 262,036,350.99/18,392.67
  6. Step 6: Final answer
    x = 14,246.79

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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.