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Finding the Fourth Proportional to 8,174.66, 12,262.66 and 2,551.64

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Solution

The fourth proportional to 8,174.66, 12,262.66 and 2,551.64 is: 3,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.66 : 12,262.66 = 2,551.64 : x
  2. Step 2: Convert to fraction form
    8,174.66/12,262.66 = 2,551.64/x
  3. Step 3: Cross multiply
    8,174.66x = 12,262.66 × 2,551.64
  4. Step 4: Simplify right side
    8,174.66x = 31,289,826.07
  5. Step 5: Solve for x
    x = 31,289,826.07/8,174.66
  6. Step 6: Final answer
    x = 3,827.66

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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.