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Finding the Fourth Proportional to 29,750.30, 41,056.11 and 18,421.64

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Solution

The fourth proportional to 29,750.30, 41,056.11 and 18,421.64 is: 25,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,750.30 : 41,056.11 = 18,421.64 : x
  2. Step 2: Convert to fraction form
    29,750.30/41,056.11 = 18,421.64/x
  3. Step 3: Cross multiply
    29,750.30x = 41,056.11 × 18,421.64
  4. Step 4: Simplify right side
    29,750.30x = 756,320,672.94
  5. Step 5: Solve for x
    x = 756,320,672.94/29,750.30
  6. Step 6: Final answer
    x = 25,422.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.