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Finding the Fourth Proportional to 12,841.72, 19,265.65 and 4,076.65

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Solution

The fourth proportional to 12,841.72, 19,265.65 and 4,076.65 is: 6,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.72 : 19,265.65 = 4,076.65 : x
  2. Step 2: Convert to fraction form
    12,841.72/19,265.65 = 4,076.65/x
  3. Step 3: Cross multiply
    12,841.72x = 19,265.65 × 4,076.65
  4. Step 4: Simplify right side
    12,841.72x = 78,539,217.59
  5. Step 5: Solve for x
    x = 78,539,217.59/12,841.72
  6. Step 6: Final answer
    x = 6,115.94

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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.