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Finding the Fourth Proportional to 6,628.63, 9,147.31 and 3,795.91

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Solution

The fourth proportional to 6,628.63, 9,147.31 and 3,795.91 is: 5,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.63 : 9,147.31 = 3,795.91 : x
  2. Step 2: Convert to fraction form
    6,628.63/9,147.31 = 3,795.91/x
  3. Step 3: Cross multiply
    6,628.63x = 9,147.31 × 3,795.91
  4. Step 4: Simplify right side
    6,628.63x = 34,722,310.28
  5. Step 5: Solve for x
    x = 34,722,310.28/6,628.63
  6. Step 6: Final answer
    x = 5,238.24

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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.