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Finding the Fourth Proportional to 8,667.02, 12,996.20 and 2,822.90

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Solution

The fourth proportional to 8,667.02, 12,996.20 and 2,822.90 is: 4,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.02 : 12,996.20 = 2,822.90 : x
  2. Step 2: Convert to fraction form
    8,667.02/12,996.20 = 2,822.90/x
  3. Step 3: Cross multiply
    8,667.02x = 12,996.20 × 2,822.90
  4. Step 4: Simplify right side
    8,667.02x = 36,686,972.98
  5. Step 5: Solve for x
    x = 36,686,972.98/8,667.02
  6. Step 6: Final answer
    x = 4,232.94

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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.