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Finding the Fourth Proportional to 8,863.68, 12,231.32 and 4,884.56

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Solution

The fourth proportional to 8,863.68, 12,231.32 and 4,884.56 is: 6,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.68 : 12,231.32 = 4,884.56 : x
  2. Step 2: Convert to fraction form
    8,863.68/12,231.32 = 4,884.56/x
  3. Step 3: Cross multiply
    8,863.68x = 12,231.32 × 4,884.56
  4. Step 4: Simplify right side
    8,863.68x = 59,744,616.42
  5. Step 5: Solve for x
    x = 59,744,616.42/8,863.68
  6. Step 6: Final answer
    x = 6,740.39

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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.