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Finding the Fourth Proportional to 7,338.69, 11,007.90 and 2,956.03

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Solution

The fourth proportional to 7,338.69, 11,007.90 and 2,956.03 is: 4,433.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.69 : 11,007.90 = 2,956.03 : x
  2. Step 2: Convert to fraction form
    7,338.69/11,007.90 = 2,956.03/x
  3. Step 3: Cross multiply
    7,338.69x = 11,007.90 × 2,956.03
  4. Step 4: Simplify right side
    7,338.69x = 32,539,682.64
  5. Step 5: Solve for x
    x = 32,539,682.64/7,338.69
  6. Step 6: Final answer
    x = 4,433.99

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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.