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Finding the Fourth Proportional to 11,843.63, 17,758.92 and 4,821.85

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Solution

The fourth proportional to 11,843.63, 17,758.92 and 4,821.85 is: 7,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.63 : 17,758.92 = 4,821.85 : x
  2. Step 2: Convert to fraction form
    11,843.63/17,758.92 = 4,821.85/x
  3. Step 3: Cross multiply
    11,843.63x = 17,758.92 × 4,821.85
  4. Step 4: Simplify right side
    11,843.63x = 85,630,804.00
  5. Step 5: Solve for x
    x = 85,630,804.00/11,843.63
  6. Step 6: Final answer
    x = 7,230.11

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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.