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Finding the Fourth Proportional to 8,672.02, 13,008.02 and 2,828.62

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Solution

The fourth proportional to 8,672.02, 13,008.02 and 2,828.62 is: 4,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.02 : 13,008.02 = 2,828.62 : x
  2. Step 2: Convert to fraction form
    8,672.02/13,008.02 = 2,828.62/x
  3. Step 3: Cross multiply
    8,672.02x = 13,008.02 × 2,828.62
  4. Step 4: Simplify right side
    8,672.02x = 36,794,745.53
  5. Step 5: Solve for x
    x = 36,794,745.53/8,672.02
  6. Step 6: Final answer
    x = 4,242.93

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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.