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Finding the Fourth Proportional to 29,012.40, 43,523.10 and 12,372.48

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Solution

The fourth proportional to 29,012.40, 43,523.10 and 12,372.48 is: 18,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,012.40 : 43,523.10 = 12,372.48 : x
  2. Step 2: Convert to fraction form
    29,012.40/43,523.10 = 12,372.48/x
  3. Step 3: Cross multiply
    29,012.40x = 43,523.10 × 12,372.48
  4. Step 4: Simplify right side
    29,012.40x = 538,488,684.29
  5. Step 5: Solve for x
    x = 538,488,684.29/29,012.40
  6. Step 6: Final answer
    x = 18,560.64

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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.