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Finding the Fourth Proportional to 8,636.16, 12,953.44 and 3,704.88

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Solution

The fourth proportional to 8,636.16, 12,953.44 and 3,704.88 is: 5,556.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.16 : 12,953.44 = 3,704.88 : x
  2. Step 2: Convert to fraction form
    8,636.16/12,953.44 = 3,704.88/x
  3. Step 3: Cross multiply
    8,636.16x = 12,953.44 × 3,704.88
  4. Step 4: Simplify right side
    8,636.16x = 47,990,940.79
  5. Step 5: Solve for x
    x = 47,990,940.79/8,636.16
  6. Step 6: Final answer
    x = 5,556.98

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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.