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Finding the Fourth Proportional to 8,168.61, 12,237.48 and 4,826.89

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Solution

The fourth proportional to 8,168.61, 12,237.48 and 4,826.89 is: 7,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.61 : 12,237.48 = 4,826.89 : x
  2. Step 2: Convert to fraction form
    8,168.61/12,237.48 = 4,826.89/x
  3. Step 3: Cross multiply
    8,168.61x = 12,237.48 × 4,826.89
  4. Step 4: Simplify right side
    8,168.61x = 59,068,969.84
  5. Step 5: Solve for x
    x = 59,068,969.84/8,168.61
  6. Step 6: Final answer
    x = 7,231.21

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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.