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Finding the Fourth Proportional to 11,841.21, 17,759.88 and 4,820.94

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Solution

The fourth proportional to 11,841.21, 17,759.88 and 4,820.94 is: 7,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.21 : 17,759.88 = 4,820.94 : x
  2. Step 2: Convert to fraction form
    11,841.21/17,759.88 = 4,820.94/x
  3. Step 3: Cross multiply
    11,841.21x = 17,759.88 × 4,820.94
  4. Step 4: Simplify right side
    11,841.21x = 85,619,315.89
  5. Step 5: Solve for x
    x = 85,619,315.89/11,841.21
  6. Step 6: Final answer
    x = 7,230.62

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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.