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Finding the Fourth Proportional to 36,491.99, 50,354.66 and 20,575.49

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Solution

The fourth proportional to 36,491.99, 50,354.66 and 20,575.49 is: 28,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.99 : 50,354.66 = 20,575.49 : x
  2. Step 2: Convert to fraction form
    36,491.99/50,354.66 = 20,575.49/x
  3. Step 3: Cross multiply
    36,491.99x = 50,354.66 × 20,575.49
  4. Step 4: Simplify right side
    36,491.99x = 1,036,071,602.95
  5. Step 5: Solve for x
    x = 1,036,071,602.95/36,491.99
  6. Step 6: Final answer
    x = 28,391.76

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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.