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Finding the Fourth Proportional to 29,222.98, 43,851.21 and 12,354.64

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Solution

The fourth proportional to 29,222.98, 43,851.21 and 12,354.64 is: 18,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,222.98 : 43,851.21 = 12,354.64 : x
  2. Step 2: Convert to fraction form
    29,222.98/43,851.21 = 12,354.64/x
  3. Step 3: Cross multiply
    29,222.98x = 43,851.21 × 12,354.64
  4. Step 4: Simplify right side
    29,222.98x = 541,765,913.11
  5. Step 5: Solve for x
    x = 541,765,913.11/29,222.98
  6. Step 6: Final answer
    x = 18,539.04

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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.