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Finding the Fourth Proportional to 7,794.78, 11,692.16 and 1,951.39

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Solution

The fourth proportional to 7,794.78, 11,692.16 and 1,951.39 is: 2,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.78 : 11,692.16 = 1,951.39 : x
  2. Step 2: Convert to fraction form
    7,794.78/11,692.16 = 1,951.39/x
  3. Step 3: Cross multiply
    7,794.78x = 11,692.16 × 1,951.39
  4. Step 4: Simplify right side
    7,794.78x = 22,815,987.25
  5. Step 5: Solve for x
    x = 22,815,987.25/7,794.78
  6. Step 6: Final answer
    x = 2,927.08

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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.