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Finding the Fourth Proportional to 4,170.88, 5,749.88 and 2,842.88

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Solution

The fourth proportional to 4,170.88, 5,749.88 and 2,842.88 is: 3,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.88 : 5,749.88 = 2,842.88 : x
  2. Step 2: Convert to fraction form
    4,170.88/5,749.88 = 2,842.88/x
  3. Step 3: Cross multiply
    4,170.88x = 5,749.88 × 2,842.88
  4. Step 4: Simplify right side
    4,170.88x = 16,346,218.85
  5. Step 5: Solve for x
    x = 16,346,218.85/4,170.88
  6. Step 6: Final answer
    x = 3,919.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.