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Finding the Fourth Proportional to 6,400.51, 8,832.43 and 3,568.20

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Solution

The fourth proportional to 6,400.51, 8,832.43 and 3,568.20 is: 4,923.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.51 : 8,832.43 = 3,568.20 : x
  2. Step 2: Convert to fraction form
    6,400.51/8,832.43 = 3,568.20/x
  3. Step 3: Cross multiply
    6,400.51x = 8,832.43 × 3,568.20
  4. Step 4: Simplify right side
    6,400.51x = 31,515,876.73
  5. Step 5: Solve for x
    x = 31,515,876.73/6,400.51
  6. Step 6: Final answer
    x = 4,923.96

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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.