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Finding the Fourth Proportional to 15,992.62, 23,968.88 and 12,308.74

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Solution

The fourth proportional to 15,992.62, 23,968.88 and 12,308.74 is: 18,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.62 : 23,968.88 = 12,308.74 : x
  2. Step 2: Convert to fraction form
    15,992.62/23,968.88 = 12,308.74/x
  3. Step 3: Cross multiply
    15,992.62x = 23,968.88 × 12,308.74
  4. Step 4: Simplify right side
    15,992.62x = 295,026,712.01
  5. Step 5: Solve for x
    x = 295,026,712.01/15,992.62
  6. Step 6: Final answer
    x = 18,447.68

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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.