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Finding the Fourth Proportional to 55,221.75, 82,833.84 and 13,668.75

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Solution

The fourth proportional to 55,221.75, 82,833.84 and 13,668.75 is: 20,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.75 : 82,833.84 = 13,668.75 : x
  2. Step 2: Convert to fraction form
    55,221.75/82,833.84 = 13,668.75/x
  3. Step 3: Cross multiply
    55,221.75x = 82,833.84 × 13,668.75
  4. Step 4: Simplify right side
    55,221.75x = 1,132,235,050.50
  5. Step 5: Solve for x
    x = 1,132,235,050.50/55,221.75
  6. Step 6: Final answer
    x = 20,503.43

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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.