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Finding the Fourth Proportional to 15,079.20, 22,611 and 8,840.52

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Solution

The fourth proportional to 15,079.20, 22,611 and 8,840.52 is: 13,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.20 : 22,611 = 8,840.52 : x
  2. Step 2: Convert to fraction form
    15,079.20/22,611 = 8,840.52/x
  3. Step 3: Cross multiply
    15,079.20x = 22,611 × 8,840.52
  4. Step 4: Simplify right side
    15,079.20x = 199,892,997.72
  5. Step 5: Solve for x
    x = 199,892,997.72/15,079.20
  6. Step 6: Final answer
    x = 13,256.21

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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.