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Finding the Fourth Proportional to 8,449.41, 11,659.90 and 4,672.92

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Solution

The fourth proportional to 8,449.41, 11,659.90 and 4,672.92 is: 6,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.41 : 11,659.90 = 4,672.92 : x
  2. Step 2: Convert to fraction form
    8,449.41/11,659.90 = 4,672.92/x
  3. Step 3: Cross multiply
    8,449.41x = 11,659.90 × 4,672.92
  4. Step 4: Simplify right side
    8,449.41x = 54,485,756.54
  5. Step 5: Solve for x
    x = 54,485,756.54/8,449.41
  6. Step 6: Final answer
    x = 6,448.47

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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.