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Finding the Fourth Proportional to 7,394.78, 11,092.17 and 7,074.83

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Solution

The fourth proportional to 7,394.78, 11,092.17 and 7,074.83 is: 10,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.78 : 11,092.17 = 7,074.83 : x
  2. Step 2: Convert to fraction form
    7,394.78/11,092.17 = 7,074.83/x
  3. Step 3: Cross multiply
    7,394.78x = 11,092.17 × 7,074.83
  4. Step 4: Simplify right side
    7,394.78x = 78,475,161.62
  5. Step 5: Solve for x
    x = 78,475,161.62/7,394.78
  6. Step 6: Final answer
    x = 10,612.24

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Half scale
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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.