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Finding the Fourth Proportional to 8,540.46, 12,791.01 and 8,244.96

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Solution

The fourth proportional to 8,540.46, 12,791.01 and 8,244.96 is: 12,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.46 : 12,791.01 = 8,244.96 : x
  2. Step 2: Convert to fraction form
    8,540.46/12,791.01 = 8,244.96/x
  3. Step 3: Cross multiply
    8,540.46x = 12,791.01 × 8,244.96
  4. Step 4: Simplify right side
    8,540.46x = 105,461,365.81
  5. Step 5: Solve for x
    x = 105,461,365.81/8,540.46
  6. Step 6: Final answer
    x = 12,348.44

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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.