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Finding the Fourth Proportional to 10,956.96, 16,431.96 and 3,559.68

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Solution

The fourth proportional to 10,956.96, 16,431.96 and 3,559.68 is: 5,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.96 : 16,431.96 = 3,559.68 : x
  2. Step 2: Convert to fraction form
    10,956.96/16,431.96 = 3,559.68/x
  3. Step 3: Cross multiply
    10,956.96x = 16,431.96 × 3,559.68
  4. Step 4: Simplify right side
    10,956.96x = 58,492,519.37
  5. Step 5: Solve for x
    x = 58,492,519.37/10,956.96
  6. Step 6: Final answer
    x = 5,338.39

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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.