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Finding the Fourth Proportional to 11,356.67, 17,030.14 and 3,958.94

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Solution

The fourth proportional to 11,356.67, 17,030.14 and 3,958.94 is: 5,936.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.67 : 17,030.14 = 3,958.94 : x
  2. Step 2: Convert to fraction form
    11,356.67/17,030.14 = 3,958.94/x
  3. Step 3: Cross multiply
    11,356.67x = 17,030.14 × 3,958.94
  4. Step 4: Simplify right side
    11,356.67x = 67,421,207.40
  5. Step 5: Solve for x
    x = 67,421,207.40/11,356.67
  6. Step 6: Final answer
    x = 5,936.71

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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.