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Finding the Fourth Proportional to 53,668.72, 80,535.84 and 33,920.08

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Solution

The fourth proportional to 53,668.72, 80,535.84 and 33,920.08 is: 50,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,668.72 : 80,535.84 = 33,920.08 : x
  2. Step 2: Convert to fraction form
    53,668.72/80,535.84 = 33,920.08/x
  3. Step 3: Cross multiply
    53,668.72x = 80,535.84 × 33,920.08
  4. Step 4: Simplify right side
    53,668.72x = 2,731,782,135.67
  5. Step 5: Solve for x
    x = 2,731,782,135.67/53,668.72
  6. Step 6: Final answer
    x = 50,900.83

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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.