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Finding the Fourth Proportional to 8,794.32, 12,136.14 and 4,815.42

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Solution

The fourth proportional to 8,794.32, 12,136.14 and 4,815.42 is: 6,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.32 : 12,136.14 = 4,815.42 : x
  2. Step 2: Convert to fraction form
    8,794.32/12,136.14 = 4,815.42/x
  3. Step 3: Cross multiply
    8,794.32x = 12,136.14 × 4,815.42
  4. Step 4: Simplify right side
    8,794.32x = 58,440,611.28
  5. Step 5: Solve for x
    x = 58,440,611.28/8,794.32
  6. Step 6: Final answer
    x = 6,645.27

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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.