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Finding the Fourth Proportional to 7,791.93, 11,689.92 and 4,093.07

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Solution

The fourth proportional to 7,791.93, 11,689.92 and 4,093.07 is: 6,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.93 : 11,689.92 = 4,093.07 : x
  2. Step 2: Convert to fraction form
    7,791.93/11,689.92 = 4,093.07/x
  3. Step 3: Cross multiply
    7,791.93x = 11,689.92 × 4,093.07
  4. Step 4: Simplify right side
    7,791.93x = 47,847,602.40
  5. Step 5: Solve for x
    x = 47,847,602.40/7,791.93
  6. Step 6: Final answer
    x = 6,140.66

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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.