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Finding the Fourth Proportional to 8,665.88, 12,997.46 and 2,822.44

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Solution

The fourth proportional to 8,665.88, 12,997.46 and 2,822.44 is: 4,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.88 : 12,997.46 = 2,822.44 : x
  2. Step 2: Convert to fraction form
    8,665.88/12,997.46 = 2,822.44/x
  3. Step 3: Cross multiply
    8,665.88x = 12,997.46 × 2,822.44
  4. Step 4: Simplify right side
    8,665.88x = 36,684,551.00
  5. Step 5: Solve for x
    x = 36,684,551.00/8,665.88
  6. Step 6: Final answer
    x = 4,233.22

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1.5x scale

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.