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Finding the Fourth Proportional to 6,923.88, 9,555.03 and 3,780.27

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Solution

The fourth proportional to 6,923.88, 9,555.03 and 3,780.27 is: 5,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.88 : 9,555.03 = 3,780.27 : x
  2. Step 2: Convert to fraction form
    6,923.88/9,555.03 = 3,780.27/x
  3. Step 3: Cross multiply
    6,923.88x = 9,555.03 × 3,780.27
  4. Step 4: Simplify right side
    6,923.88x = 36,120,593.26
  5. Step 5: Solve for x
    x = 36,120,593.26/6,923.88
  6. Step 6: Final answer
    x = 5,216.81

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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.