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Finding the Fourth Proportional to 18,773.29, 25,899.76 and 12,057.98

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Solution

The fourth proportional to 18,773.29, 25,899.76 and 12,057.98 is: 16,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.29 : 25,899.76 = 12,057.98 : x
  2. Step 2: Convert to fraction form
    18,773.29/25,899.76 = 12,057.98/x
  3. Step 3: Cross multiply
    18,773.29x = 25,899.76 × 12,057.98
  4. Step 4: Simplify right side
    18,773.29x = 312,298,788.08
  5. Step 5: Solve for x
    x = 312,298,788.08/18,773.29
  6. Step 6: Final answer
    x = 16,635.27

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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.