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Finding the Fourth Proportional to 7,658.73, 11,482.92 and 2,725.65

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Solution

The fourth proportional to 7,658.73, 11,482.92 and 2,725.65 is: 4,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.73 : 11,482.92 = 2,725.65 : x
  2. Step 2: Convert to fraction form
    7,658.73/11,482.92 = 2,725.65/x
  3. Step 3: Cross multiply
    7,658.73x = 11,482.92 × 2,725.65
  4. Step 4: Simplify right side
    7,658.73x = 31,298,420.90
  5. Step 5: Solve for x
    x = 31,298,420.90/7,658.73
  6. Step 6: Final answer
    x = 4,086.63

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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.