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Finding the Fourth Proportional to 11,751.75, 17,628.84 and 4,734.18

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Solution

The fourth proportional to 11,751.75, 17,628.84 and 4,734.18 is: 7,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.75 : 17,628.84 = 4,734.18 : x
  2. Step 2: Convert to fraction form
    11,751.75/17,628.84 = 4,734.18/x
  3. Step 3: Cross multiply
    11,751.75x = 17,628.84 × 4,734.18
  4. Step 4: Simplify right side
    11,751.75x = 83,458,101.75
  5. Step 5: Solve for x
    x = 83,458,101.75/11,751.75
  6. Step 6: Final answer
    x = 7,101.76

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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.