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Finding the Fourth Proportional to 36,751.96, 55,140.90 and 13,380.76

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Solution

The fourth proportional to 36,751.96, 55,140.90 and 13,380.76 is: 20,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,751.96 : 55,140.90 = 13,380.76 : x
  2. Step 2: Convert to fraction form
    36,751.96/55,140.90 = 13,380.76/x
  3. Step 3: Cross multiply
    36,751.96x = 55,140.90 × 13,380.76
  4. Step 4: Simplify right side
    36,751.96x = 737,827,149.08
  5. Step 5: Solve for x
    x = 737,827,149.08/36,751.96
  6. Step 6: Final answer
    x = 20,075.86

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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.