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Finding the Fourth Proportional to 8,638.44, 12,957.66 and 2,482.44

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Solution

The fourth proportional to 8,638.44, 12,957.66 and 2,482.44 is: 3,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.44 : 12,957.66 = 2,482.44 : x
  2. Step 2: Convert to fraction form
    8,638.44/12,957.66 = 2,482.44/x
  3. Step 3: Cross multiply
    8,638.44x = 12,957.66 × 2,482.44
  4. Step 4: Simplify right side
    8,638.44x = 32,166,613.49
  5. Step 5: Solve for x
    x = 32,166,613.49/8,638.44
  6. Step 6: Final answer
    x = 3,723.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.