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Finding the Fourth Proportional to 36,307.14, 50,101.50 and 20,391.30

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Solution

The fourth proportional to 36,307.14, 50,101.50 and 20,391.30 is: 28,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,307.14 : 50,101.50 = 20,391.30 : x
  2. Step 2: Convert to fraction form
    36,307.14/50,101.50 = 20,391.30/x
  3. Step 3: Cross multiply
    36,307.14x = 50,101.50 × 20,391.30
  4. Step 4: Simplify right side
    36,307.14x = 1,021,634,716.95
  5. Step 5: Solve for x
    x = 1,021,634,716.95/36,307.14
  6. Step 6: Final answer
    x = 28,138.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.