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Finding the Fourth Proportional to 8,885.88, 12,262.56 and 4,906.92

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Solution

The fourth proportional to 8,885.88, 12,262.56 and 4,906.92 is: 6,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.88 : 12,262.56 = 4,906.92 : x
  2. Step 2: Convert to fraction form
    8,885.88/12,262.56 = 4,906.92/x
  3. Step 3: Cross multiply
    8,885.88x = 12,262.56 × 4,906.92
  4. Step 4: Simplify right side
    8,885.88x = 60,171,400.92
  5. Step 5: Solve for x
    x = 60,171,400.92/8,885.88
  6. Step 6: Final answer
    x = 6,771.57

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Half scale
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Double scale
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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.