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Finding the Fourth Proportional to 5,551.61, 7,661.32 and 3,033.82

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Solution

The fourth proportional to 5,551.61, 7,661.32 and 3,033.82 is: 4,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.61 : 7,661.32 = 3,033.82 : x
  2. Step 2: Convert to fraction form
    5,551.61/7,661.32 = 3,033.82/x
  3. Step 3: Cross multiply
    5,551.61x = 7,661.32 × 3,033.82
  4. Step 4: Simplify right side
    5,551.61x = 23,243,050.67
  5. Step 5: Solve for x
    x = 23,243,050.67/5,551.61
  6. Step 6: Final answer
    x = 4,186.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.