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Finding the Fourth Proportional to 6,338.96, 9,509.76 and 1,956.32

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Solution

The fourth proportional to 6,338.96, 9,509.76 and 1,956.32 is: 2,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.96 : 9,509.76 = 1,956.32 : x
  2. Step 2: Convert to fraction form
    6,338.96/9,509.76 = 1,956.32/x
  3. Step 3: Cross multiply
    6,338.96x = 9,509.76 × 1,956.32
  4. Step 4: Simplify right side
    6,338.96x = 18,604,133.68
  5. Step 5: Solve for x
    x = 18,604,133.68/6,338.96
  6. Step 6: Final answer
    x = 2,934.89

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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.