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Finding the Fourth Proportional to 7,791.92, 11,686.26 and 4,630.58

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Solution

The fourth proportional to 7,791.92, 11,686.26 and 4,630.58 is: 6,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.92 : 11,686.26 = 4,630.58 : x
  2. Step 2: Convert to fraction form
    7,791.92/11,686.26 = 4,630.58/x
  3. Step 3: Cross multiply
    7,791.92x = 11,686.26 × 4,630.58
  4. Step 4: Simplify right side
    7,791.92x = 54,114,161.83
  5. Step 5: Solve for x
    x = 54,114,161.83/7,791.92
  6. Step 6: Final answer
    x = 6,944.91

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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.