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Finding the Fourth Proportional to 7,279.34, 10,919.72 and 2,895.83

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Solution

The fourth proportional to 7,279.34, 10,919.72 and 2,895.83 is: 4,344.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.34 : 10,919.72 = 2,895.83 : x
  2. Step 2: Convert to fraction form
    7,279.34/10,919.72 = 2,895.83/x
  3. Step 3: Cross multiply
    7,279.34x = 10,919.72 × 2,895.83
  4. Step 4: Simplify right side
    7,279.34x = 31,621,638.29
  5. Step 5: Solve for x
    x = 31,621,638.29/7,279.34
  6. Step 6: Final answer
    x = 4,344.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.