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Finding the Fourth Proportional to 3,809.88, 5,710.50 and 1,617.24

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Solution

The fourth proportional to 3,809.88, 5,710.50 and 1,617.24 is: 2,424.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.88 : 5,710.50 = 1,617.24 : x
  2. Step 2: Convert to fraction form
    3,809.88/5,710.50 = 1,617.24/x
  3. Step 3: Cross multiply
    3,809.88x = 5,710.50 × 1,617.24
  4. Step 4: Simplify right side
    3,809.88x = 9,235,249.02
  5. Step 5: Solve for x
    x = 9,235,249.02/3,809.88
  6. Step 6: Final answer
    x = 2,424.03

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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.