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Finding the Fourth Proportional to 12,861.55, 19,293.71 and 4,094.41

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Solution

The fourth proportional to 12,861.55, 19,293.71 and 4,094.41 is: 6,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.55 : 19,293.71 = 4,094.41 : x
  2. Step 2: Convert to fraction form
    12,861.55/19,293.71 = 4,094.41/x
  3. Step 3: Cross multiply
    12,861.55x = 19,293.71 × 4,094.41
  4. Step 4: Simplify right side
    12,861.55x = 78,996,359.16
  5. Step 5: Solve for x
    x = 78,996,359.16/12,861.55
  6. Step 6: Final answer
    x = 6,142.06

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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.