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Finding the Fourth Proportional to 9,043.67, 12,481.73 and 5,409.48

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Solution

The fourth proportional to 9,043.67, 12,481.73 and 5,409.48 is: 7,465.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,043.67 : 12,481.73 = 5,409.48 : x
  2. Step 2: Convert to fraction form
    9,043.67/12,481.73 = 5,409.48/x
  3. Step 3: Cross multiply
    9,043.67x = 12,481.73 × 5,409.48
  4. Step 4: Simplify right side
    9,043.67x = 67,519,708.85
  5. Step 5: Solve for x
    x = 67,519,708.85/9,043.67
  6. Step 6: Final answer
    x = 7,465.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.