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Finding the Fourth Proportional to 28,822.41, 43,234.94 and 8,830.47

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Solution

The fourth proportional to 28,822.41, 43,234.94 and 8,830.47 is: 13,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.41 : 43,234.94 = 8,830.47 : x
  2. Step 2: Convert to fraction form
    28,822.41/43,234.94 = 8,830.47/x
  3. Step 3: Cross multiply
    28,822.41x = 43,234.94 × 8,830.47
  4. Step 4: Simplify right side
    28,822.41x = 381,784,862.70
  5. Step 5: Solve for x
    x = 381,784,862.70/28,822.41
  6. Step 6: Final answer
    x = 13,246.11

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Why These Related Problems?

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