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Finding the Fourth Proportional to 36,874.80, 55,333.80 and 13,503.60

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Solution

The fourth proportional to 36,874.80, 55,333.80 and 13,503.60 is: 20,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.80 : 55,333.80 = 13,503.60 : x
  2. Step 2: Convert to fraction form
    36,874.80/55,333.80 = 13,503.60/x
  3. Step 3: Cross multiply
    36,874.80x = 55,333.80 × 13,503.60
  4. Step 4: Simplify right side
    36,874.80x = 747,205,501.68
  5. Step 5: Solve for x
    x = 747,205,501.68/36,874.80
  6. Step 6: Final answer
    x = 20,263.31

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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.