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Finding the Fourth Proportional to 8,844.94, 12,199.21 and 5,489.74

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Solution

The fourth proportional to 8,844.94, 12,199.21 and 5,489.74 is: 7,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,844.94 : 12,199.21 = 5,489.74 : x
  2. Step 2: Convert to fraction form
    8,844.94/12,199.21 = 5,489.74/x
  3. Step 3: Cross multiply
    8,844.94x = 12,199.21 × 5,489.74
  4. Step 4: Simplify right side
    8,844.94x = 66,970,491.11
  5. Step 5: Solve for x
    x = 66,970,491.11/8,844.94
  6. Step 6: Final answer
    x = 7,571.62

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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.