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Finding the Fourth Proportional to 7,221.75, 10,832.63 and 1,749.75

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Solution

The fourth proportional to 7,221.75, 10,832.63 and 1,749.75 is: 2,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.75 : 10,832.63 = 1,749.75 : x
  2. Step 2: Convert to fraction form
    7,221.75/10,832.63 = 1,749.75/x
  3. Step 3: Cross multiply
    7,221.75x = 10,832.63 × 1,749.75
  4. Step 4: Simplify right side
    7,221.75x = 18,954,385.59
  5. Step 5: Solve for x
    x = 18,954,385.59/7,221.75
  6. Step 6: Final answer
    x = 2,624.63

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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.