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Finding the Fourth Proportional to 7,135.44, 9,845.24 and 4,149.48

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Solution

The fourth proportional to 7,135.44, 9,845.24 and 4,149.48 is: 5,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.44 : 9,845.24 = 4,149.48 : x
  2. Step 2: Convert to fraction form
    7,135.44/9,845.24 = 4,149.48/x
  3. Step 3: Cross multiply
    7,135.44x = 9,845.24 × 4,149.48
  4. Step 4: Simplify right side
    7,135.44x = 40,852,626.48
  5. Step 5: Solve for x
    x = 40,852,626.48/7,135.44
  6. Step 6: Final answer
    x = 5,725.31

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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.