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Finding the Fourth Proportional to 18,799.97, 25,954.02 and 12,000.83

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Solution

The fourth proportional to 18,799.97, 25,954.02 and 12,000.83 is: 16,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.97 : 25,954.02 = 12,000.83 : x
  2. Step 2: Convert to fraction form
    18,799.97/25,954.02 = 12,000.83/x
  3. Step 3: Cross multiply
    18,799.97x = 25,954.02 × 12,000.83
  4. Step 4: Simplify right side
    18,799.97x = 311,469,652.07
  5. Step 5: Solve for x
    x = 311,469,652.07/18,799.97
  6. Step 6: Final answer
    x = 16,567.57

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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.