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Finding the Fourth Proportional to 18,824.83, 25,978.46 and 10,326.97

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Solution

The fourth proportional to 18,824.83, 25,978.46 and 10,326.97 is: 14,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.83 : 25,978.46 = 10,326.97 : x
  2. Step 2: Convert to fraction form
    18,824.83/25,978.46 = 10,326.97/x
  3. Step 3: Cross multiply
    18,824.83x = 25,978.46 × 10,326.97
  4. Step 4: Simplify right side
    18,824.83x = 268,278,737.94
  5. Step 5: Solve for x
    x = 268,278,737.94/18,824.83
  6. Step 6: Final answer
    x = 14,251.32

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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.