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Finding the Fourth Proportional to 16,697.60, 25,027.20 and 6,830.40

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Solution

The fourth proportional to 16,697.60, 25,027.20 and 6,830.40 is: 10,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,697.60 : 25,027.20 = 6,830.40 : x
  2. Step 2: Convert to fraction form
    16,697.60/25,027.20 = 6,830.40/x
  3. Step 3: Cross multiply
    16,697.60x = 25,027.20 × 6,830.40
  4. Step 4: Simplify right side
    16,697.60x = 170,945,786.88
  5. Step 5: Solve for x
    x = 170,945,786.88/16,697.60
  6. Step 6: Final answer
    x = 10,237.75

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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.