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Finding the Fourth Proportional to 8,804.64, 12,149.42 and 5,449.62

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Solution

The fourth proportional to 8,804.64, 12,149.42 and 5,449.62 is: 7,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.64 : 12,149.42 = 5,449.62 : x
  2. Step 2: Convert to fraction form
    8,804.64/12,149.42 = 5,449.62/x
  3. Step 3: Cross multiply
    8,804.64x = 12,149.42 × 5,449.62
  4. Step 4: Simplify right side
    8,804.64x = 66,209,694.97
  5. Step 5: Solve for x
    x = 66,209,694.97/8,804.64
  6. Step 6: Final answer
    x = 7,519.86

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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.