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Finding the Fourth Proportional to 18,825.33, 25,978.77 and 10,327.27

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Solution

The fourth proportional to 18,825.33, 25,978.77 and 10,327.27 is: 14,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.33 : 25,978.77 = 10,327.27 : x
  2. Step 2: Convert to fraction form
    18,825.33/25,978.77 = 10,327.27/x
  3. Step 3: Cross multiply
    18,825.33x = 25,978.77 × 10,327.27
  4. Step 4: Simplify right side
    18,825.33x = 268,289,772.06
  5. Step 5: Solve for x
    x = 268,289,772.06/18,825.33
  6. Step 6: Final answer
    x = 14,251.53

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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.