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Finding the Fourth Proportional to 9,883.44, 13,652.46 and 7,908.12

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Solution

The fourth proportional to 9,883.44, 13,652.46 and 7,908.12 is: 10,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.44 : 13,652.46 = 7,908.12 : x
  2. Step 2: Convert to fraction form
    9,883.44/13,652.46 = 7,908.12/x
  3. Step 3: Cross multiply
    9,883.44x = 13,652.46 × 7,908.12
  4. Step 4: Simplify right side
    9,883.44x = 107,965,291.98
  5. Step 5: Solve for x
    x = 107,965,291.98/9,883.44
  6. Step 6: Final answer
    x = 10,923.86

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Double scale
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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.