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Finding the Fourth Proportional to 3,763.65, 5,644.23 and 1,571.79

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Solution

The fourth proportional to 3,763.65, 5,644.23 and 1,571.79 is: 2,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.65 : 5,644.23 = 1,571.79 : x
  2. Step 2: Convert to fraction form
    3,763.65/5,644.23 = 1,571.79/x
  3. Step 3: Cross multiply
    3,763.65x = 5,644.23 × 1,571.79
  4. Step 4: Simplify right side
    3,763.65x = 8,871,544.27
  5. Step 5: Solve for x
    x = 8,871,544.27/3,763.65
  6. Step 6: Final answer
    x = 2,357.17

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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.