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Finding the Fourth Proportional to 9,908.60, 13,674.02 and 5,929.88

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Solution

The fourth proportional to 9,908.60, 13,674.02 and 5,929.88 is: 8,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.60 : 13,674.02 = 5,929.88 : x
  2. Step 2: Convert to fraction form
    9,908.60/13,674.02 = 5,929.88/x
  3. Step 3: Cross multiply
    9,908.60x = 13,674.02 × 5,929.88
  4. Step 4: Simplify right side
    9,908.60x = 81,085,297.72
  5. Step 5: Solve for x
    x = 81,085,297.72/9,908.60
  6. Step 6: Final answer
    x = 8,183.33

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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.