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Finding the Fourth Proportional to 8,146.50, 11,243.07 and 4,609.68

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Solution

The fourth proportional to 8,146.50, 11,243.07 and 4,609.68 is: 6,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.50 : 11,243.07 = 4,609.68 : x
  2. Step 2: Convert to fraction form
    8,146.50/11,243.07 = 4,609.68/x
  3. Step 3: Cross multiply
    8,146.50x = 11,243.07 × 4,609.68
  4. Step 4: Simplify right side
    8,146.50x = 51,826,954.92
  5. Step 5: Solve for x
    x = 51,826,954.92/8,146.50
  6. Step 6: Final answer
    x = 6,361.87

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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.