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Finding the Fourth Proportional to 36,776.28, 55,163.28 and 21,885.48

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Solution

The fourth proportional to 36,776.28, 55,163.28 and 21,885.48 is: 32,827.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,776.28 : 55,163.28 = 21,885.48 : x
  2. Step 2: Convert to fraction form
    36,776.28/55,163.28 = 21,885.48/x
  3. Step 3: Cross multiply
    36,776.28x = 55,163.28 × 21,885.48
  4. Step 4: Simplify right side
    36,776.28x = 1,207,274,861.17
  5. Step 5: Solve for x
    x = 1,207,274,861.17/36,776.28
  6. Step 6: Final answer
    x = 32,827.54

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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.