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Finding the Fourth Proportional to 13,673.76, 18,879.24 and 10,481.52

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Solution

The fourth proportional to 13,673.76, 18,879.24 and 10,481.52 is: 14,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.76 : 18,879.24 = 10,481.52 : x
  2. Step 2: Convert to fraction form
    13,673.76/18,879.24 = 10,481.52/x
  3. Step 3: Cross multiply
    13,673.76x = 18,879.24 × 10,481.52
  4. Step 4: Simplify right side
    13,673.76x = 197,883,131.64
  5. Step 5: Solve for x
    x = 197,883,131.64/13,673.76
  6. Step 6: Final answer
    x = 14,471.74

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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.