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Finding the Fourth Proportional to 2,859.67, 4,255.25 and 2,849.95

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Solution

The fourth proportional to 2,859.67, 4,255.25 and 2,849.95 is: 4,240.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.67 : 4,255.25 = 2,849.95 : x
  2. Step 2: Convert to fraction form
    2,859.67/4,255.25 = 2,849.95/x
  3. Step 3: Cross multiply
    2,859.67x = 4,255.25 × 2,849.95
  4. Step 4: Simplify right side
    2,859.67x = 12,127,249.74
  5. Step 5: Solve for x
    x = 12,127,249.74/2,859.67
  6. Step 6: Final answer
    x = 4,240.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.