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Finding the Fourth Proportional to 8,751.20, 13,105.92 and 5,045.68

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Solution

The fourth proportional to 8,751.20, 13,105.92 and 5,045.68 is: 7,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.20 : 13,105.92 = 5,045.68 : x
  2. Step 2: Convert to fraction form
    8,751.20/13,105.92 = 5,045.68/x
  3. Step 3: Cross multiply
    8,751.20x = 13,105.92 × 5,045.68
  4. Step 4: Simplify right side
    8,751.20x = 66,128,278.43
  5. Step 5: Solve for x
    x = 66,128,278.43/8,751.20
  6. Step 6: Final answer
    x = 7,556.48

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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.