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Finding the Fourth Proportional to 5,798.85, 8,698.28 and 2,099.86

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Solution

The fourth proportional to 5,798.85, 8,698.28 and 2,099.86 is: 3,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.85 : 8,698.28 = 2,099.86 : x
  2. Step 2: Convert to fraction form
    5,798.85/8,698.28 = 2,099.86/x
  3. Step 3: Cross multiply
    5,798.85x = 8,698.28 × 2,099.86
  4. Step 4: Simplify right side
    5,798.85x = 18,265,185.03
  5. Step 5: Solve for x
    x = 18,265,185.03/5,798.85
  6. Step 6: Final answer
    x = 3,149.79

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Double scale
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Similar ratio
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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.