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Finding the Fourth Proportional to 8,467.87, 11,685.74 and 4,741.87

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Solution

The fourth proportional to 8,467.87, 11,685.74 and 4,741.87 is: 6,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.87 : 11,685.74 = 4,741.87 : x
  2. Step 2: Convert to fraction form
    8,467.87/11,685.74 = 4,741.87/x
  3. Step 3: Cross multiply
    8,467.87x = 11,685.74 × 4,741.87
  4. Step 4: Simplify right side
    8,467.87x = 55,412,259.93
  5. Step 5: Solve for x
    x = 55,412,259.93/8,467.87
  6. Step 6: Final answer
    x = 6,543.83

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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.