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Finding the Fourth Proportional to 7,908.93, 11,863.17 and 3,228.93

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Solution

The fourth proportional to 7,908.93, 11,863.17 and 3,228.93 is: 4,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.93 : 11,863.17 = 3,228.93 : x
  2. Step 2: Convert to fraction form
    7,908.93/11,863.17 = 3,228.93/x
  3. Step 3: Cross multiply
    7,908.93x = 11,863.17 × 3,228.93
  4. Step 4: Simplify right side
    7,908.93x = 38,305,345.51
  5. Step 5: Solve for x
    x = 38,305,345.51/7,908.93
  6. Step 6: Final answer
    x = 4,843.30

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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.