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Finding the Fourth Proportional to 57,003.85, 85,503.34 and 55,668.97

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Solution

The fourth proportional to 57,003.85, 85,503.34 and 55,668.97 is: 83,501.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.85 : 85,503.34 = 55,668.97 : x
  2. Step 2: Convert to fraction form
    57,003.85/85,503.34 = 55,668.97/x
  3. Step 3: Cross multiply
    57,003.85x = 85,503.34 × 55,668.97
  4. Step 4: Simplify right side
    57,003.85x = 4,759,882,163.50
  5. Step 5: Solve for x
    x = 4,759,882,163.50/57,003.85
  6. Step 6: Final answer
    x = 83,501.07

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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.