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Finding the Fourth Proportional to 43,575.20, 65,211.60 and 26,057.60

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Solution

The fourth proportional to 43,575.20, 65,211.60 and 26,057.60 is: 38,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,575.20 : 65,211.60 = 26,057.60 : x
  2. Step 2: Convert to fraction form
    43,575.20/65,211.60 = 26,057.60/x
  3. Step 3: Cross multiply
    43,575.20x = 65,211.60 × 26,057.60
  4. Step 4: Simplify right side
    43,575.20x = 1,699,257,788.16
  5. Step 5: Solve for x
    x = 1,699,257,788.16/43,575.20
  6. Step 6: Final answer
    x = 38,995.98

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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.