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Finding the Fourth Proportional to 2,537.24, 3,805.82 and 805.86

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Solution

The fourth proportional to 2,537.24, 3,805.82 and 805.86 is: 1,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,537.24 : 3,805.82 = 805.86 : x
  2. Step 2: Convert to fraction form
    2,537.24/3,805.82 = 805.86/x
  3. Step 3: Cross multiply
    2,537.24x = 3,805.82 × 805.86
  4. Step 4: Simplify right side
    2,537.24x = 3,066,954.08
  5. Step 5: Solve for x
    x = 3,066,954.08/2,537.24
  6. Step 6: Final answer
    x = 1,208.78

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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.