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Finding the Fourth Proportional to 14,840.71, 20,481.72 and 8,794.56

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Solution

The fourth proportional to 14,840.71, 20,481.72 and 8,794.56 is: 12,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.71 : 20,481.72 = 8,794.56 : x
  2. Step 2: Convert to fraction form
    14,840.71/20,481.72 = 8,794.56/x
  3. Step 3: Cross multiply
    14,840.71x = 20,481.72 × 8,794.56
  4. Step 4: Simplify right side
    14,840.71x = 180,127,715.44
  5. Step 5: Solve for x
    x = 180,127,715.44/14,840.71
  6. Step 6: Final answer
    x = 12,137.41

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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.