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Finding the Fourth Proportional to 9,193.77, 13,791.11 and 2,620.92

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Solution

The fourth proportional to 9,193.77, 13,791.11 and 2,620.92 is: 3,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,193.77 : 13,791.11 = 2,620.92 : x
  2. Step 2: Convert to fraction form
    9,193.77/13,791.11 = 2,620.92/x
  3. Step 3: Cross multiply
    9,193.77x = 13,791.11 × 2,620.92
  4. Step 4: Simplify right side
    9,193.77x = 36,145,449.38
  5. Step 5: Solve for x
    x = 36,145,449.38/9,193.77
  6. Step 6: Final answer
    x = 3,931.52

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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.