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Finding the Fourth Proportional to 8,220.66, 12,334.08 and 4,936.04

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Solution

The fourth proportional to 8,220.66, 12,334.08 and 4,936.04 is: 7,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.66 : 12,334.08 = 4,936.04 : x
  2. Step 2: Convert to fraction form
    8,220.66/12,334.08 = 4,936.04/x
  3. Step 3: Cross multiply
    8,220.66x = 12,334.08 × 4,936.04
  4. Step 4: Simplify right side
    8,220.66x = 60,881,512.24
  5. Step 5: Solve for x
    x = 60,881,512.24/8,220.66
  6. Step 6: Final answer
    x = 7,405.92

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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.