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Finding the Fourth Proportional to 8,794.47, 12,136.33 and 4,815.55

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Solution

The fourth proportional to 8,794.47, 12,136.33 and 4,815.55 is: 6,645.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.47 : 12,136.33 = 4,815.55 : x
  2. Step 2: Convert to fraction form
    8,794.47/12,136.33 = 4,815.55/x
  3. Step 3: Cross multiply
    8,794.47x = 12,136.33 × 4,815.55
  4. Step 4: Simplify right side
    8,794.47x = 58,443,125.12
  5. Step 5: Solve for x
    x = 58,443,125.12/8,794.47
  6. Step 6: Final answer
    x = 6,645.44

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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.