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Finding the Fourth Proportional to 15,751.18, 23,670.17 and 8,361.17

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Solution

The fourth proportional to 15,751.18, 23,670.17 and 8,361.17 is: 12,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.18 : 23,670.17 = 8,361.17 : x
  2. Step 2: Convert to fraction form
    15,751.18/23,670.17 = 8,361.17/x
  3. Step 3: Cross multiply
    15,751.18x = 23,670.17 × 8,361.17
  4. Step 4: Simplify right side
    15,751.18x = 197,910,455.44
  5. Step 5: Solve for x
    x = 197,910,455.44/15,751.18
  6. Step 6: Final answer
    x = 12,564.80

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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.