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Finding the Fourth Proportional to 29,312.96, 40,449.94 and 18,701.44

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Solution

The fourth proportional to 29,312.96, 40,449.94 and 18,701.44 is: 25,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.96 : 40,449.94 = 18,701.44 : x
  2. Step 2: Convert to fraction form
    29,312.96/40,449.94 = 18,701.44/x
  3. Step 3: Cross multiply
    29,312.96x = 40,449.94 × 18,701.44
  4. Step 4: Simplify right side
    29,312.96x = 756,471,978.04
  5. Step 5: Solve for x
    x = 756,471,978.04/29,312.96
  6. Step 6: Final answer
    x = 25,806.75

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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.