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Finding the Fourth Proportional to 5,235.65, 7,225.25 and 2,845.65

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Solution

The fourth proportional to 5,235.65, 7,225.25 and 2,845.65 is: 3,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.65 : 7,225.25 = 2,845.65 : x
  2. Step 2: Convert to fraction form
    5,235.65/7,225.25 = 2,845.65/x
  3. Step 3: Cross multiply
    5,235.65x = 7,225.25 × 2,845.65
  4. Step 4: Simplify right side
    5,235.65x = 20,560,520.89
  5. Step 5: Solve for x
    x = 20,560,520.89/5,235.65
  6. Step 6: Final answer
    x = 3,927.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.