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Finding the Fourth Proportional to 87,672.80, 131,460.60 and 35,022.80

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Solution

The fourth proportional to 87,672.80, 131,460.60 and 35,022.80 is: 52,514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.80 : 131,460.60 = 35,022.80 : x
  2. Step 2: Convert to fraction form
    87,672.80/131,460.60 = 35,022.80/x
  3. Step 3: Cross multiply
    87,672.80x = 131,460.60 × 35,022.80
  4. Step 4: Simplify right side
    87,672.80x = 4,604,118,301.68
  5. Step 5: Solve for x
    x = 4,604,118,301.68/87,672.80
  6. Step 6: Final answer
    x = 52,514.79

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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.