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Finding the Fourth Proportional to 11,600.79, 16,009.08 and 6,295.60

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Solution

The fourth proportional to 11,600.79, 16,009.08 and 6,295.60 is: 8,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,600.79 : 16,009.08 = 6,295.60 : x
  2. Step 2: Convert to fraction form
    11,600.79/16,009.08 = 6,295.60/x
  3. Step 3: Cross multiply
    11,600.79x = 16,009.08 × 6,295.60
  4. Step 4: Simplify right side
    11,600.79x = 100,786,764.05
  5. Step 5: Solve for x
    x = 100,786,764.05/11,600.79
  6. Step 6: Final answer
    x = 8,687.93

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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.