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Finding the Fourth Proportional to 76,527.54, 114,791.12 and 20,367.63

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Solution

The fourth proportional to 76,527.54, 114,791.12 and 20,367.63 is: 30,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,527.54 : 114,791.12 = 20,367.63 : x
  2. Step 2: Convert to fraction form
    76,527.54/114,791.12 = 20,367.63/x
  3. Step 3: Cross multiply
    76,527.54x = 114,791.12 × 20,367.63
  4. Step 4: Simplify right side
    76,527.54x = 2,338,023,059.45
  5. Step 5: Solve for x
    x = 2,338,023,059.45/76,527.54
  6. Step 6: Final answer
    x = 30,551.39

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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.