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Finding the Fourth Proportional to 8,906.83, 12,278.59 and 6,245.98

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Solution

The fourth proportional to 8,906.83, 12,278.59 and 6,245.98 is: 8,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.83 : 12,278.59 = 6,245.98 : x
  2. Step 2: Convert to fraction form
    8,906.83/12,278.59 = 6,245.98/x
  3. Step 3: Cross multiply
    8,906.83x = 12,278.59 × 6,245.98
  4. Step 4: Simplify right side
    8,906.83x = 76,691,827.57
  5. Step 5: Solve for x
    x = 76,691,827.57/8,906.83
  6. Step 6: Final answer
    x = 8,610.45

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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.