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Finding the Fourth Proportional to 11,640.15, 16,063.11 and 6,795.81

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Solution

The fourth proportional to 11,640.15, 16,063.11 and 6,795.81 is: 9,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.15 : 16,063.11 = 6,795.81 : x
  2. Step 2: Convert to fraction form
    11,640.15/16,063.11 = 6,795.81/x
  3. Step 3: Cross multiply
    11,640.15x = 16,063.11 × 6,795.81
  4. Step 4: Simplify right side
    11,640.15x = 109,161,729.27
  5. Step 5: Solve for x
    x = 109,161,729.27/11,640.15
  6. Step 6: Final answer
    x = 9,378.03

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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.