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Finding the Fourth Proportional to 5,879.70, 8,819.55 and 4,929.30

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Solution

The fourth proportional to 5,879.70, 8,819.55 and 4,929.30 is: 7,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.70 : 8,819.55 = 4,929.30 : x
  2. Step 2: Convert to fraction form
    5,879.70/8,819.55 = 4,929.30/x
  3. Step 3: Cross multiply
    5,879.70x = 8,819.55 × 4,929.30
  4. Step 4: Simplify right side
    5,879.70x = 43,474,207.82
  5. Step 5: Solve for x
    x = 43,474,207.82/5,879.70
  6. Step 6: Final answer
    x = 7,393.95

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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.