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Finding the Fourth Proportional to 9,168.99, 12,660.47 and 5,984.47

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Solution

The fourth proportional to 9,168.99, 12,660.47 and 5,984.47 is: 8,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.99 : 12,660.47 = 5,984.47 : x
  2. Step 2: Convert to fraction form
    9,168.99/12,660.47 = 5,984.47/x
  3. Step 3: Cross multiply
    9,168.99x = 12,660.47 × 5,984.47
  4. Step 4: Simplify right side
    9,168.99x = 75,766,202.90
  5. Step 5: Solve for x
    x = 75,766,202.90/9,168.99
  6. Step 6: Final answer
    x = 8,263.31

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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.