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Finding the Fourth Proportional to 18,799.59, 25,950.17 and 12,826.99

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Solution

The fourth proportional to 18,799.59, 25,950.17 and 12,826.99 is: 17,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.59 : 25,950.17 = 12,826.99 : x
  2. Step 2: Convert to fraction form
    18,799.59/25,950.17 = 12,826.99/x
  3. Step 3: Cross multiply
    18,799.59x = 25,950.17 × 12,826.99
  4. Step 4: Simplify right side
    18,799.59x = 332,862,635.59
  5. Step 5: Solve for x
    x = 332,862,635.59/18,799.59
  6. Step 6: Final answer
    x = 17,705.84

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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.