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Finding the Fourth Proportional to 8,791.47, 13,190.28 and 5,096.94

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Solution

The fourth proportional to 8,791.47, 13,190.28 and 5,096.94 is: 7,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.47 : 13,190.28 = 5,096.94 : x
  2. Step 2: Convert to fraction form
    8,791.47/13,190.28 = 5,096.94/x
  3. Step 3: Cross multiply
    8,791.47x = 13,190.28 × 5,096.94
  4. Step 4: Simplify right side
    8,791.47x = 67,230,065.74
  5. Step 5: Solve for x
    x = 67,230,065.74/8,791.47
  6. Step 6: Final answer
    x = 7,647.19

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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.