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Finding the Fourth Proportional to 18,649.60, 27,949.56 and 6,951.04

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Solution

The fourth proportional to 18,649.60, 27,949.56 and 6,951.04 is: 10,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.60 : 27,949.56 = 6,951.04 : x
  2. Step 2: Convert to fraction form
    18,649.60/27,949.56 = 6,951.04/x
  3. Step 3: Cross multiply
    18,649.60x = 27,949.56 × 6,951.04
  4. Step 4: Simplify right side
    18,649.60x = 194,278,509.54
  5. Step 5: Solve for x
    x = 194,278,509.54/18,649.60
  6. Step 6: Final answer
    x = 10,417.30

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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.