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Finding the Fourth Proportional to 8,885.57, 12,262.14 and 4,906.94

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Solution

The fourth proportional to 8,885.57, 12,262.14 and 4,906.94 is: 6,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.57 : 12,262.14 = 4,906.94 : x
  2. Step 2: Convert to fraction form
    8,885.57/12,262.14 = 4,906.94/x
  3. Step 3: Cross multiply
    8,885.57x = 12,262.14 × 4,906.94
  4. Step 4: Simplify right side
    8,885.57x = 60,169,585.25
  5. Step 5: Solve for x
    x = 60,169,585.25/8,885.57
  6. Step 6: Final answer
    x = 6,771.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.