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Finding the Fourth Proportional to 11,809.83, 17,736.62 and 9,360.39

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Solution

The fourth proportional to 11,809.83, 17,736.62 and 9,360.39 is: 14,057.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.83 : 17,736.62 = 9,360.39 : x
  2. Step 2: Convert to fraction form
    11,809.83/17,736.62 = 9,360.39/x
  3. Step 3: Cross multiply
    11,809.83x = 17,736.62 × 9,360.39
  4. Step 4: Simplify right side
    11,809.83x = 166,021,633.68
  5. Step 5: Solve for x
    x = 166,021,633.68/11,809.83
  6. Step 6: Final answer
    x = 14,057.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.