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Finding the Fourth Proportional to 9,855.36, 14,777.61 and 6,738.88

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Solution

The fourth proportional to 9,855.36, 14,777.61 and 6,738.88 is: 10,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.36 : 14,777.61 = 6,738.88 : x
  2. Step 2: Convert to fraction form
    9,855.36/14,777.61 = 6,738.88/x
  3. Step 3: Cross multiply
    9,855.36x = 14,777.61 × 6,738.88
  4. Step 4: Simplify right side
    9,855.36x = 99,584,540.48
  5. Step 5: Solve for x
    x = 99,584,540.48/9,855.36
  6. Step 6: Final answer
    x = 10,104.61

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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.