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Finding the Fourth Proportional to 11,608.66, 16,015.57 and 7,631.86

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Solution

The fourth proportional to 11,608.66, 16,015.57 and 7,631.86 is: 10,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,608.66 : 16,015.57 = 7,631.86 : x
  2. Step 2: Convert to fraction form
    11,608.66/16,015.57 = 7,631.86/x
  3. Step 3: Cross multiply
    11,608.66x = 16,015.57 × 7,631.86
  4. Step 4: Simplify right side
    11,608.66x = 122,228,588.06
  5. Step 5: Solve for x
    x = 122,228,588.06/11,608.66
  6. Step 6: Final answer
    x = 10,529.09

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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.