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Finding the Fourth Proportional to 69,481.88, 95,885.42 and 39,267.80

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Solution

The fourth proportional to 69,481.88, 95,885.42 and 39,267.80 is: 54,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.88 : 95,885.42 = 39,267.80 : x
  2. Step 2: Convert to fraction form
    69,481.88/95,885.42 = 39,267.80/x
  3. Step 3: Cross multiply
    69,481.88x = 95,885.42 × 39,267.80
  4. Step 4: Simplify right side
    69,481.88x = 3,765,209,495.48
  5. Step 5: Solve for x
    x = 3,765,209,495.48/69,481.88
  6. Step 6: Final answer
    x = 54,189.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.