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Finding the Fourth Proportional to 41,272.92, 61,890.48 and 13,187.52

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Solution

The fourth proportional to 41,272.92, 61,890.48 and 13,187.52 is: 19,775.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,272.92 : 61,890.48 = 13,187.52 : x
  2. Step 2: Convert to fraction form
    41,272.92/61,890.48 = 13,187.52/x
  3. Step 3: Cross multiply
    41,272.92x = 61,890.48 × 13,187.52
  4. Step 4: Simplify right side
    41,272.92x = 816,181,942.81
  5. Step 5: Solve for x
    x = 816,181,942.81/41,272.92
  6. Step 6: Final answer
    x = 19,775.24

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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.