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Finding the Fourth Proportional to 82,791.86, 124,189 and 23,627.55

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Solution

The fourth proportional to 82,791.86, 124,189 and 23,627.55 is: 35,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,791.86 : 124,189 = 23,627.55 : x
  2. Step 2: Convert to fraction form
    82,791.86/124,189 = 23,627.55/x
  3. Step 3: Cross multiply
    82,791.86x = 124,189 × 23,627.55
  4. Step 4: Simplify right side
    82,791.86x = 2,934,281,806.95
  5. Step 5: Solve for x
    x = 2,934,281,806.95/82,791.86
  6. Step 6: Final answer
    x = 35,441.67

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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.