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Finding the Fourth Proportional to 11,859.51, 16,365.98 and 6,481.92

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Solution

The fourth proportional to 11,859.51, 16,365.98 and 6,481.92 is: 8,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.51 : 16,365.98 = 6,481.92 : x
  2. Step 2: Convert to fraction form
    11,859.51/16,365.98 = 6,481.92/x
  3. Step 3: Cross multiply
    11,859.51x = 16,365.98 × 6,481.92
  4. Step 4: Simplify right side
    11,859.51x = 106,082,940.67
  5. Step 5: Solve for x
    x = 106,082,940.67/11,859.51
  6. Step 6: Final answer
    x = 8,944.97

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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.