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Finding the Fourth Proportional to 87,653.80, 131,538.90 and 32,249.80

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Solution

The fourth proportional to 87,653.80, 131,538.90 and 32,249.80 is: 48,396.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,653.80 : 131,538.90 = 32,249.80 : x
  2. Step 2: Convert to fraction form
    87,653.80/131,538.90 = 32,249.80/x
  3. Step 3: Cross multiply
    87,653.80x = 131,538.90 × 32,249.80
  4. Step 4: Simplify right side
    87,653.80x = 4,242,103,217.22
  5. Step 5: Solve for x
    x = 4,242,103,217.22/87,653.80
  6. Step 6: Final answer
    x = 48,396.11

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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.