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Finding the Fourth Proportional to 7,339.66, 11,012.72 and 2,965.66

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Solution

The fourth proportional to 7,339.66, 11,012.72 and 2,965.66 is: 4,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.66 : 11,012.72 = 2,965.66 : x
  2. Step 2: Convert to fraction form
    7,339.66/11,012.72 = 2,965.66/x
  3. Step 3: Cross multiply
    7,339.66x = 11,012.72 × 2,965.66
  4. Step 4: Simplify right side
    7,339.66x = 32,659,983.20
  5. Step 5: Solve for x
    x = 32,659,983.20/7,339.66
  6. Step 6: Final answer
    x = 4,449.80

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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.