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Finding the Fourth Proportional to 7,956.03, 11,935.40 and 3,278.57

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Solution

The fourth proportional to 7,956.03, 11,935.40 and 3,278.57 is: 4,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.03 : 11,935.40 = 3,278.57 : x
  2. Step 2: Convert to fraction form
    7,956.03/11,935.40 = 3,278.57/x
  3. Step 3: Cross multiply
    7,956.03x = 11,935.40 × 3,278.57
  4. Step 4: Simplify right side
    7,956.03x = 39,131,044.38
  5. Step 5: Solve for x
    x = 39,131,044.38/7,956.03
  6. Step 6: Final answer
    x = 4,918.41

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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.