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Finding the Fourth Proportional to 14,992.90, 22,489.35 and 8,418.94

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Solution

The fourth proportional to 14,992.90, 22,489.35 and 8,418.94 is: 12,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.90 : 22,489.35 = 8,418.94 : x
  2. Step 2: Convert to fraction form
    14,992.90/22,489.35 = 8,418.94/x
  3. Step 3: Cross multiply
    14,992.90x = 22,489.35 × 8,418.94
  4. Step 4: Simplify right side
    14,992.90x = 189,336,488.29
  5. Step 5: Solve for x
    x = 189,336,488.29/14,992.90
  6. Step 6: Final answer
    x = 12,628.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.