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Finding the Fourth Proportional to 11,659.41, 17,435.93 and 8,699.94

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Solution

The fourth proportional to 11,659.41, 17,435.93 and 8,699.94 is: 13,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.41 : 17,435.93 = 8,699.94 : x
  2. Step 2: Convert to fraction form
    11,659.41/17,435.93 = 8,699.94/x
  3. Step 3: Cross multiply
    11,659.41x = 17,435.93 × 8,699.94
  4. Step 4: Simplify right side
    11,659.41x = 151,691,501.34
  5. Step 5: Solve for x
    x = 151,691,501.34/11,659.41
  6. Step 6: Final answer
    x = 13,010.22

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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.