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Finding the Fourth Proportional to 43,861.03, 65,677.03 and 28,820.86

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Solution

The fourth proportional to 43,861.03, 65,677.03 and 28,820.86 is: 43,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,861.03 : 65,677.03 = 28,820.86 : x
  2. Step 2: Convert to fraction form
    43,861.03/65,677.03 = 28,820.86/x
  3. Step 3: Cross multiply
    43,861.03x = 65,677.03 × 28,820.86
  4. Step 4: Simplify right side
    43,861.03x = 1,892,868,486.85
  5. Step 5: Solve for x
    x = 1,892,868,486.85/43,861.03
  6. Step 6: Final answer
    x = 43,156.04

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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.