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Finding the Fourth Proportional to 27,989.60, 41,984.44 and 8,281.99

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Solution

The fourth proportional to 27,989.60, 41,984.44 and 8,281.99 is: 12,422.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.60 : 41,984.44 = 8,281.99 : x
  2. Step 2: Convert to fraction form
    27,989.60/41,984.44 = 8,281.99/x
  3. Step 3: Cross multiply
    27,989.60x = 41,984.44 × 8,281.99
  4. Step 4: Simplify right side
    27,989.60x = 347,714,586.57
  5. Step 5: Solve for x
    x = 347,714,586.57/27,989.60
  6. Step 6: Final answer
    x = 12,422.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.