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Finding the Fourth Proportional to 14,671.44, 20,246.76 and 8,047.44

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Solution

The fourth proportional to 14,671.44, 20,246.76 and 8,047.44 is: 11,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.44 : 20,246.76 = 8,047.44 : x
  2. Step 2: Convert to fraction form
    14,671.44/20,246.76 = 8,047.44/x
  3. Step 3: Cross multiply
    14,671.44x = 20,246.76 × 8,047.44
  4. Step 4: Simplify right side
    14,671.44x = 162,934,586.29
  5. Step 5: Solve for x
    x = 162,934,586.29/14,671.44
  6. Step 6: Final answer
    x = 11,105.56

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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.