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Finding the Fourth Proportional to 6,923.97, 9,555.21 and 4,235.64

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Solution

The fourth proportional to 6,923.97, 9,555.21 and 4,235.64 is: 5,845.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.97 : 9,555.21 = 4,235.64 : x
  2. Step 2: Convert to fraction form
    6,923.97/9,555.21 = 4,235.64/x
  3. Step 3: Cross multiply
    6,923.97x = 9,555.21 × 4,235.64
  4. Step 4: Simplify right side
    6,923.97x = 40,472,429.68
  5. Step 5: Solve for x
    x = 40,472,429.68/6,923.97
  6. Step 6: Final answer
    x = 5,845.26

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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.