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Finding the Fourth Proportional to 8,965.62, 13,448.42 and 2,725.61

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Solution

The fourth proportional to 8,965.62, 13,448.42 and 2,725.61 is: 4,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.62 : 13,448.42 = 2,725.61 : x
  2. Step 2: Convert to fraction form
    8,965.62/13,448.42 = 2,725.61/x
  3. Step 3: Cross multiply
    8,965.62x = 13,448.42 × 2,725.61
  4. Step 4: Simplify right side
    8,965.62x = 36,655,067.17
  5. Step 5: Solve for x
    x = 36,655,067.17/8,965.62
  6. Step 6: Final answer
    x = 4,088.40

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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.