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Finding the Fourth Proportional to 6,467.86, 8,926.62 and 3,951.42

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Solution

The fourth proportional to 6,467.86, 8,926.62 and 3,951.42 is: 5,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,467.86 : 8,926.62 = 3,951.42 : x
  2. Step 2: Convert to fraction form
    6,467.86/8,926.62 = 3,951.42/x
  3. Step 3: Cross multiply
    6,467.86x = 8,926.62 × 3,951.42
  4. Step 4: Simplify right side
    6,467.86x = 35,272,776.51
  5. Step 5: Solve for x
    x = 35,272,776.51/6,467.86
  6. Step 6: Final answer
    x = 5,453.55

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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.