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Finding the Fourth Proportional to 11,751.90, 17,627.61 and 4,826.46

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Solution

The fourth proportional to 11,751.90, 17,627.61 and 4,826.46 is: 7,239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.90 : 17,627.61 = 4,826.46 : x
  2. Step 2: Convert to fraction form
    11,751.90/17,627.61 = 4,826.46/x
  3. Step 3: Cross multiply
    11,751.90x = 17,627.61 × 4,826.46
  4. Step 4: Simplify right side
    11,751.90x = 85,078,954.56
  5. Step 5: Solve for x
    x = 85,078,954.56/11,751.90
  6. Step 6: Final answer
    x = 7,239.59

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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.