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Finding the Fourth Proportional to 11,819.25, 17,728.88 and 4,893.93

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Solution

The fourth proportional to 11,819.25, 17,728.88 and 4,893.93 is: 7,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.25 : 17,728.88 = 4,893.93 : x
  2. Step 2: Convert to fraction form
    11,819.25/17,728.88 = 4,893.93/x
  3. Step 3: Cross multiply
    11,819.25x = 17,728.88 × 4,893.93
  4. Step 4: Simplify right side
    11,819.25x = 86,763,873.23
  5. Step 5: Solve for x
    x = 86,763,873.23/11,819.25
  6. Step 6: Final answer
    x = 7,340.90

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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.