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Finding the Fourth Proportional to 10,095.50, 15,143.39 and 3,170

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Solution

The fourth proportional to 10,095.50, 15,143.39 and 3,170 is: 4,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,095.50 : 15,143.39 = 3,170 : x
  2. Step 2: Convert to fraction form
    10,095.50/15,143.39 = 3,170/x
  3. Step 3: Cross multiply
    10,095.50x = 15,143.39 × 3,170
  4. Step 4: Simplify right side
    10,095.50x = 48,004,546.30
  5. Step 5: Solve for x
    x = 48,004,546.30/10,095.50
  6. Step 6: Final answer
    x = 4,755.04

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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.