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Finding the Fourth Proportional to 50,575.80, 75,815.10 and 39,324.90

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Solution

The fourth proportional to 50,575.80, 75,815.10 and 39,324.90 is: 58,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,575.80 : 75,815.10 = 39,324.90 : x
  2. Step 2: Convert to fraction form
    50,575.80/75,815.10 = 39,324.90/x
  3. Step 3: Cross multiply
    50,575.80x = 75,815.10 × 39,324.90
  4. Step 4: Simplify right side
    50,575.80x = 2,981,421,225.99
  5. Step 5: Solve for x
    x = 2,981,421,225.99/50,575.80
  6. Step 6: Final answer
    x = 58,949.56

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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.