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Finding the Fourth Proportional to 36,893.60, 55,333.20 and 12,269.60

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Solution

The fourth proportional to 36,893.60, 55,333.20 and 12,269.60 is: 18,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,893.60 : 55,333.20 = 12,269.60 : x
  2. Step 2: Convert to fraction form
    36,893.60/55,333.20 = 12,269.60/x
  3. Step 3: Cross multiply
    36,893.60x = 55,333.20 × 12,269.60
  4. Step 4: Simplify right side
    36,893.60x = 678,916,230.72
  5. Step 5: Solve for x
    x = 678,916,230.72/36,893.60
  6. Step 6: Final answer
    x = 18,402.01

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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.