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Finding the Fourth Proportional to 66,163.83, 99,245.83 and 18,132.85

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Solution

The fourth proportional to 66,163.83, 99,245.83 and 18,132.85 is: 27,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163.83 : 99,245.83 = 18,132.85 : x
  2. Step 2: Convert to fraction form
    66,163.83/99,245.83 = 18,132.85/x
  3. Step 3: Cross multiply
    66,163.83x = 99,245.83 × 18,132.85
  4. Step 4: Simplify right side
    66,163.83x = 1,799,609,748.52
  5. Step 5: Solve for x
    x = 1,799,609,748.52/66,163.83
  6. Step 6: Final answer
    x = 27,199.30

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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.