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Finding the Fourth Proportional to 22,908.10, 31,611.69 and 13,474.84

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Solution

The fourth proportional to 22,908.10, 31,611.69 and 13,474.84 is: 18,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,908.10 : 31,611.69 = 13,474.84 : x
  2. Step 2: Convert to fraction form
    22,908.10/31,611.69 = 13,474.84/x
  3. Step 3: Cross multiply
    22,908.10x = 31,611.69 × 13,474.84
  4. Step 4: Simplify right side
    22,908.10x = 425,962,464.88
  5. Step 5: Solve for x
    x = 425,962,464.88/22,908.10
  6. Step 6: Final answer
    x = 18,594.40

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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.