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Finding the Fourth Proportional to 7,953.66, 11,930.67 and 6,791.67

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Solution

The fourth proportional to 7,953.66, 11,930.67 and 6,791.67 is: 10,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.66 : 11,930.67 = 6,791.67 : x
  2. Step 2: Convert to fraction form
    7,953.66/11,930.67 = 6,791.67/x
  3. Step 3: Cross multiply
    7,953.66x = 11,930.67 × 6,791.67
  4. Step 4: Simplify right side
    7,953.66x = 81,029,173.52
  5. Step 5: Solve for x
    x = 81,029,173.52/7,953.66
  6. Step 6: Final answer
    x = 10,187.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.