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Finding the Fourth Proportional to 8,242.44, 12,363.12 and 3,860.88

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Solution

The fourth proportional to 8,242.44, 12,363.12 and 3,860.88 is: 5,791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.44 : 12,363.12 = 3,860.88 : x
  2. Step 2: Convert to fraction form
    8,242.44/12,363.12 = 3,860.88/x
  3. Step 3: Cross multiply
    8,242.44x = 12,363.12 × 3,860.88
  4. Step 4: Simplify right side
    8,242.44x = 47,732,522.75
  5. Step 5: Solve for x
    x = 47,732,522.75/8,242.44
  6. Step 6: Final answer
    x = 5,791.07

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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.