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Finding the Fourth Proportional to 12,697.96, 19,046.94 and 5,774.44

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Solution

The fourth proportional to 12,697.96, 19,046.94 and 5,774.44 is: 8,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.96 : 19,046.94 = 5,774.44 : x
  2. Step 2: Convert to fraction form
    12,697.96/19,046.94 = 5,774.44/x
  3. Step 3: Cross multiply
    12,697.96x = 19,046.94 × 5,774.44
  4. Step 4: Simplify right side
    12,697.96x = 109,985,412.21
  5. Step 5: Solve for x
    x = 109,985,412.21/12,697.96
  6. Step 6: Final answer
    x = 8,661.66

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Double scale
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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.