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Finding the Fourth Proportional to 43,916.67, 65,876.83 and 12,751.92

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Solution

The fourth proportional to 43,916.67, 65,876.83 and 12,751.92 is: 19,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,916.67 : 65,876.83 = 12,751.92 : x
  2. Step 2: Convert to fraction form
    43,916.67/65,876.83 = 12,751.92/x
  3. Step 3: Cross multiply
    43,916.67x = 65,876.83 × 12,751.92
  4. Step 4: Simplify right side
    43,916.67x = 840,056,034.13
  5. Step 5: Solve for x
    x = 840,056,034.13/43,916.67
  6. Step 6: Final answer
    x = 19,128.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.