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Finding the Fourth Proportional to 9,245.67, 12,755.91 and 5,263.97

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Solution

The fourth proportional to 9,245.67, 12,755.91 and 5,263.97 is: 7,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.67 : 12,755.91 = 5,263.97 : x
  2. Step 2: Convert to fraction form
    9,245.67/12,755.91 = 5,263.97/x
  3. Step 3: Cross multiply
    9,245.67x = 12,755.91 × 5,263.97
  4. Step 4: Simplify right side
    9,245.67x = 67,146,708.83
  5. Step 5: Solve for x
    x = 67,146,708.83/9,245.67
  6. Step 6: Final answer
    x = 7,262.50

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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.