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Finding the Fourth Proportional to 8,363.60, 12,543.60 and 3,683.60

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Solution

The fourth proportional to 8,363.60, 12,543.60 and 3,683.60 is: 5,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.60 : 12,543.60 = 3,683.60 : x
  2. Step 2: Convert to fraction form
    8,363.60/12,543.60 = 3,683.60/x
  3. Step 3: Cross multiply
    8,363.60x = 12,543.60 × 3,683.60
  4. Step 4: Simplify right side
    8,363.60x = 46,205,604.96
  5. Step 5: Solve for x
    x = 46,205,604.96/8,363.60
  6. Step 6: Final answer
    x = 5,524.61

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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.