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Finding the Fourth Proportional to 8,793.68, 12,136.38 and 5,258.84

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Solution

The fourth proportional to 8,793.68, 12,136.38 and 5,258.84 is: 7,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.68 : 12,136.38 = 5,258.84 : x
  2. Step 2: Convert to fraction form
    8,793.68/12,136.38 = 5,258.84/x
  3. Step 3: Cross multiply
    8,793.68x = 12,136.38 × 5,258.84
  4. Step 4: Simplify right side
    8,793.68x = 63,823,280.60
  5. Step 5: Solve for x
    x = 63,823,280.60/8,793.68
  6. Step 6: Final answer
    x = 7,257.86

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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.