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Finding the Fourth Proportional to 33,762.99, 50,515.99 and 20,386.75

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Solution

The fourth proportional to 33,762.99, 50,515.99 and 20,386.75 is: 30,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,762.99 : 50,515.99 = 20,386.75 : x
  2. Step 2: Convert to fraction form
    33,762.99/50,515.99 = 20,386.75/x
  3. Step 3: Cross multiply
    33,762.99x = 50,515.99 × 20,386.75
  4. Step 4: Simplify right side
    33,762.99x = 1,029,856,859.13
  5. Step 5: Solve for x
    x = 1,029,856,859.13/33,762.99
  6. Step 6: Final answer
    x = 30,502.54

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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.