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Finding the Fourth Proportional to 11,925.49, 17,891.42 and 4,134.30

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Solution

The fourth proportional to 11,925.49, 17,891.42 and 4,134.30 is: 6,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.49 : 17,891.42 = 4,134.30 : x
  2. Step 2: Convert to fraction form
    11,925.49/17,891.42 = 4,134.30/x
  3. Step 3: Cross multiply
    11,925.49x = 17,891.42 × 4,134.30
  4. Step 4: Simplify right side
    11,925.49x = 73,968,497.71
  5. Step 5: Solve for x
    x = 73,968,497.71/11,925.49
  6. Step 6: Final answer
    x = 6,202.55

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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.