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Finding the Fourth Proportional to 10,194, 15,293.20 and 3,173.87

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Solution

The fourth proportional to 10,194, 15,293.20 and 3,173.87 is: 4,761.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,194 : 15,293.20 = 3,173.87 : x
  2. Step 2: Convert to fraction form
    10,194/15,293.20 = 3,173.87/x
  3. Step 3: Cross multiply
    10,194x = 15,293.20 × 3,173.87
  4. Step 4: Simplify right side
    10,194x = 48,538,628.68
  5. Step 5: Solve for x
    x = 48,538,628.68/10,194
  6. Step 6: Final answer
    x = 4,761.49

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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.