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Finding the Fourth Proportional to 5,661.56, 8,480.04 and 3,463.64

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Solution

The fourth proportional to 5,661.56, 8,480.04 and 3,463.64 is: 5,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.56 : 8,480.04 = 3,463.64 : x
  2. Step 2: Convert to fraction form
    5,661.56/8,480.04 = 3,463.64/x
  3. Step 3: Cross multiply
    5,661.56x = 8,480.04 × 3,463.64
  4. Step 4: Simplify right side
    5,661.56x = 29,371,805.75
  5. Step 5: Solve for x
    x = 29,371,805.75/5,661.56
  6. Step 6: Final answer
    x = 5,187.94

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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.