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Finding the Fourth Proportional to 15,170.92, 22,766.63 and 5,310.29

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Solution

The fourth proportional to 15,170.92, 22,766.63 and 5,310.29 is: 7,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.92 : 22,766.63 = 5,310.29 : x
  2. Step 2: Convert to fraction form
    15,170.92/22,766.63 = 5,310.29/x
  3. Step 3: Cross multiply
    15,170.92x = 22,766.63 × 5,310.29
  4. Step 4: Simplify right side
    15,170.92x = 120,897,407.62
  5. Step 5: Solve for x
    x = 120,897,407.62/15,170.92
  6. Step 6: Final answer
    x = 7,969.02

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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.