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Finding the Fourth Proportional to 8,965.88, 13,448.36 and 2,725.87

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Solution

The fourth proportional to 8,965.88, 13,448.36 and 2,725.87 is: 4,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.88 : 13,448.36 = 2,725.87 : x
  2. Step 2: Convert to fraction form
    8,965.88/13,448.36 = 2,725.87/x
  3. Step 3: Cross multiply
    8,965.88x = 13,448.36 × 2,725.87
  4. Step 4: Simplify right side
    8,965.88x = 36,658,481.07
  5. Step 5: Solve for x
    x = 36,658,481.07/8,965.88
  6. Step 6: Final answer
    x = 4,088.67

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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.