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Finding the Fourth Proportional to 4,492.97, 6,739.49 and 1,571.28

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Solution

The fourth proportional to 4,492.97, 6,739.49 and 1,571.28 is: 2,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,492.97 : 6,739.49 = 1,571.28 : x
  2. Step 2: Convert to fraction form
    4,492.97/6,739.49 = 1,571.28/x
  3. Step 3: Cross multiply
    4,492.97x = 6,739.49 × 1,571.28
  4. Step 4: Simplify right side
    4,492.97x = 10,589,625.85
  5. Step 5: Solve for x
    x = 10,589,625.85/4,492.97
  6. Step 6: Final answer
    x = 2,356.93

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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.