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Finding the Fourth Proportional to 8,965.73, 13,448.64 and 2,725.79

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Solution

The fourth proportional to 8,965.73, 13,448.64 and 2,725.79 is: 4,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.73 : 13,448.64 = 2,725.79 : x
  2. Step 2: Convert to fraction form
    8,965.73/13,448.64 = 2,725.79/x
  3. Step 3: Cross multiply
    8,965.73x = 13,448.64 × 2,725.79
  4. Step 4: Simplify right side
    8,965.73x = 36,658,168.43
  5. Step 5: Solve for x
    x = 36,658,168.43/8,965.73
  6. Step 6: Final answer
    x = 4,088.70

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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.