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Finding the Fourth Proportional to 3,952.99, 5,931.51 and 1,761.94

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Solution

The fourth proportional to 3,952.99, 5,931.51 and 1,761.94 is: 2,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.99 : 5,931.51 = 1,761.94 : x
  2. Step 2: Convert to fraction form
    3,952.99/5,931.51 = 1,761.94/x
  3. Step 3: Cross multiply
    3,952.99x = 5,931.51 × 1,761.94
  4. Step 4: Simplify right side
    3,952.99x = 10,450,964.73
  5. Step 5: Solve for x
    x = 10,450,964.73/3,952.99
  6. Step 6: Final answer
    x = 2,643.81

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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.