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Finding the Fourth Proportional to 12,245.76, 16,908.48 and 8,059.68

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Solution

The fourth proportional to 12,245.76, 16,908.48 and 8,059.68 is: 11,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.76 : 16,908.48 = 8,059.68 : x
  2. Step 2: Convert to fraction form
    12,245.76/16,908.48 = 8,059.68/x
  3. Step 3: Cross multiply
    12,245.76x = 16,908.48 × 8,059.68
  4. Step 4: Simplify right side
    12,245.76x = 136,276,938.09
  5. Step 5: Solve for x
    x = 136,276,938.09/12,245.76
  6. Step 6: Final answer
    x = 11,128.50

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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.