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Finding the Fourth Proportional to 4,249.90, 5,865.18 and 2,480.86

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Solution

The fourth proportional to 4,249.90, 5,865.18 and 2,480.86 is: 3,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.90 : 5,865.18 = 2,480.86 : x
  2. Step 2: Convert to fraction form
    4,249.90/5,865.18 = 2,480.86/x
  3. Step 3: Cross multiply
    4,249.90x = 5,865.18 × 2,480.86
  4. Step 4: Simplify right side
    4,249.90x = 14,550,690.45
  5. Step 5: Solve for x
    x = 14,550,690.45/4,249.90
  6. Step 6: Final answer
    x = 3,423.77

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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.