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Finding the Fourth Proportional to 8,704.73, 12,013.49 and 5,168.16

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Solution

The fourth proportional to 8,704.73, 12,013.49 and 5,168.16 is: 7,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.73 : 12,013.49 = 5,168.16 : x
  2. Step 2: Convert to fraction form
    8,704.73/12,013.49 = 5,168.16/x
  3. Step 3: Cross multiply
    8,704.73x = 12,013.49 × 5,168.16
  4. Step 4: Simplify right side
    8,704.73x = 62,087,651.40
  5. Step 5: Solve for x
    x = 62,087,651.40/8,704.73
  6. Step 6: Final answer
    x = 7,132.63

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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.