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Finding the Fourth Proportional to 8,962.65, 13,376.19 and 8,729.37

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Solution

The fourth proportional to 8,962.65, 13,376.19 and 8,729.37 is: 13,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.65 : 13,376.19 = 8,729.37 : x
  2. Step 2: Convert to fraction form
    8,962.65/13,376.19 = 8,729.37/x
  3. Step 3: Cross multiply
    8,962.65x = 13,376.19 × 8,729.37
  4. Step 4: Simplify right side
    8,962.65x = 116,765,711.70
  5. Step 5: Solve for x
    x = 116,765,711.70/8,962.65
  6. Step 6: Final answer
    x = 13,028.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.