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Finding the Fourth Proportional to 12,697.52, 19,046.28 and 6,122.48

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Solution

The fourth proportional to 12,697.52, 19,046.28 and 6,122.48 is: 9,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.52 : 19,046.28 = 6,122.48 : x
  2. Step 2: Convert to fraction form
    12,697.52/19,046.28 = 6,122.48/x
  3. Step 3: Cross multiply
    12,697.52x = 19,046.28 × 6,122.48
  4. Step 4: Simplify right side
    12,697.52x = 116,610,468.37
  5. Step 5: Solve for x
    x = 116,610,468.37/12,697.52
  6. Step 6: Final answer
    x = 9,183.72

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Similar ratio
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1.5x scale

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.